I noticed, while viewing a recent thread, that I was able to read a post by someone on my ignore list without having clicked to do so. I verified the name on the ignore list, reloaded the offending thread, and the post was hidden as expected - it appears that a post flagged as ‘new/unread’ overrides the ignore list setting. At least, that’s my best guess.
Hmm, you may be the latest winner in vBulletin’s ongoing “find the bug” contest.
Sorry that happened to you.
As things go, it’s not a big deal. But worth mentioning.