Same as T152164, this could be easily abused and the changes should be trackable.
Change 382936 had a related patch set uploaded (by SamanthaNguyen; owner: SamanthaNguyen):
[mediawiki/extensions/RegexBlock@master] [DNM] Migrate logging to Special:Log/regexblock
Change 382936 abandoned by SamanthaNguyen:
[DNM] Migrate logging to Special:Log/regexblock
Don't currently have interest pursuing this.