HT 30s Rule от Mortenrb

This add-on will show a count-down in upper-left corner of the web browser, when accessing the Hattrick.org website.

The count-down is triggered by you trying to submit a message on the Hattrick forum.
After a successful submit, it will start to count down from 30s (minimum delay between posts, by regular players/users)

When the counter hits 0, you will be able to submit a new forum post, with an error margin, depending on your internet connection, but usually +/- 1s