The most irritating limit-feature on SO is, by far, the resetting comment timer. The only good thing about it is that I didn't run into it for more than a year, I had almost forgotten about it.
But when I now post a comment like
@John, like @Pete said ....
there is an error telling me that at most 1 person will be notified and then that resetting timer kicks in. Argggh.
- exclude this error from triggering the timer
- and/or turn this error into a warning and let me post the comment anyway.
For reference, Writing less than 15 characters in a comment triggers the 30 second protection is a similar report/request. I is marked [by-design] but the issue seems to have been fixed nonetheless.