Do not use meta-tags in questions. Here are some tips to help you determine whether a tag is a meta-tag:
- If the tag can’t work as the only tag on a question, it’s probably a meta-tag. Every tag you use should be able to work, more or less, as the only tag on a question. Meta-tags, like
[best-practices], are not helpful by themselves – they do not communicate anything about the content of the question.
so I've rolled back the edit (conveniently making room for a red status tag).
There have been a lot of regressed bugs in the history of Stack Exchange; I can't imagine someone explicitly searching for those, but perhaps he/she will be served by just searching for the word regression or one of its synonyms. Such questions will usually contain a link to the original status-completed bug; it might even be possible to write a SEDE query finding those.
Since it's only five questions remaining, normally I'd burninate on sight. But a couple of users were involved (it was an approved suggested edit), so I thought I'd let others chime in first.