I've seen a lot of discussion about this extension online recently, so I wanted to make a review giving my thoughts on this.

As other reviews have stated, the creator is liable to flagging intersex advocates and people who are anti-transmed as transphobic. There have also been incidents in the past where transphobes have worked together to create false flags.

At its core there is an issue with tools that either label people as good or bad with zero context. You don't know if someone who's transphobic on a tool like Shinigami eyes -or even blocklists for that matter - is on there for harassing trans people, is on there because of an intra-community disagreement, or a blacklist creator or submitter personally decided to put them on there for an unrelated reasons. These types of tools can be used to isolate people from their community and smear names.

I truly do understand why people flock to a tool like Shinigami Eyes. We are a group of people that are burnt out of being in danger and having to deal with harassment and want a way that we can easily know who to avoid. It sounds great in theory, but in practice, these types of issues are always liable to happen whether it's with Shinigami Eyes, a curated blacklist, or the callout of the week.

The best you can really do is curate your online space. Check people's posts yourself before you follow them, quietly block whenever you see something you want to avoid, and don't over rely on face-paced social media.

Keeps marking random Tumblr users as transphobic because the creator disagrees with them.

They're in desperate need of new moderators who won't abuse the power to push their own agendas outside of the stated scope.

useless, as people speaking up about transmasc, nonbinary, intersex, poc issues get wrongfully marked as red, and those who actively are transmedicalist, radfem are flagged as green. yikes

sadly useless now as there have been numerous incorrect/inconsistent markings, including TERFs behind marked green and wikipedia articles for things like plants being marked red.

Was great until intersex transphobia from the moderators

The fact that its guidelines say that bigotry against asexual and aromantic people doesn't count as "anti-LGBT" should have been the first clue that this extension and its devs would start excluding other people too. Now it's marking intersex people and trans men with red just for speaking about their experiences. Skip this extension and do your own research.

Frequently misused for admins' own bigoted views. Useless.

absolutely heartbreaking that this extension is no longer the useful tool it was to keep my and my friends safe on the internet. the developers should be ashamed of themselves to falling into racist, intersexist, enbyphobic, and transmasculine-phobic ways of thinking. our community should be working together-- ESPECIALLY in times like these-- not tearing each other down just because YOU don't care to understand someone else's lived experiences. I truly hope the developers can get their heads on straight again, but unfortunately you've lost the trust of a lot of people; myself included.
i don't think I can put into words how frustrated and disappointed I am by this.

Don't trust Shinigami Eyes. This extension is incredibly inaccurate, and it's only getting worse. Everyone is marked manually by users, and there are many false reports. People who are explicitly trans friendly (including people whose ENTIRE ACCOUNTS are dedicated to trans activism) are getting marked as "anti-trans," while well known transphobes (including people like Ben Shapiro) are getting marked as "trans friendly."

see recent comments about this extension

used to be fairly useful. but a lot of people keep getting reported for no reason and being labeled incorrectly. The creators are biased against certain groups (basically anyone who says there's issues in trans spaces and want to improve it, including: poc, intersex, and transmasc individuals or people who support them).
Basically not trustworthy unless you personally check everytime on your own.

i've been using this extension for years to keep myself safe online as a transgender person, but lately i can't trust its labels on users to be accurate.
there have been SEVERAL times now i've seen trans intersex folks & trans men who talk candidly about the transphobia and cissexism they face labelled red, while people who are openly hostile against them & nonbinary people in particular still keep their green label.
it's disheartening to have to review labelled accounts and their posts for myself to determine whether or not they're actually transphobic or trans safe, especially since it defeats the purpose of using an extension like this to begin with- that being, to know at a glance whether to block a user or to trust that they'd advocate for me without risking exposing myself to transphobia

needless to say, the current state of this extension is a far cry from how it was when i first started using it years ago, and my social media experience is worse for it.

no longer useful. See other recent comments.

always suspicious of subscribing to blocklist type additions where you are at the whim of the developers but seeing how the anti trans label is weaponized against trans people the organizer doesn't like is a no go.

just refer to what the other people here are saying im way too tired to write anything substantial