I do report them- whenever I'm bored/tired I run a restricted search of <1000 words <1 day English works and collate them into 2 Abuse reports (one for works that violate TOS, and one for works incorrectly tagged English- those aren't violations of course, Abuse will correct the language tags with no penalty to the user.)

I had been running Spam Hunts several times a day doing it the same way, to try to optimize Abuse's efforts.

Invites resumed Nov. 13. AO3 hasn't announced it, but once the banner went down I checked & saw the invite queue went from zero and started piling up.

(Currently on page 9 is where commenters noticed the queue had begun again.)
https://archiveofourown.org/admin_posts/8848