I had the same experience - got a notification the other day, went to clear it out, and found 211 (screened) spam comments on that entry!
In my experience, the most recent entry doesn't get a thing (though actually, the most recent entries don't allow comments, because I turned off commenting on new posts some years ago and direct everything to Dreamwidth). The entry that got all the spam was...a fic announcement (pointing to my post in a community) from 2004! No idea why that particular entry was targeted, though I do recall having to clear spam from it in the past. I cleared out the spam and froze that entry to new comments. But if LJ hasn't been notifying about comments lately, there might possibly be other entries that were hit.
(no subject)
Date: 2017-02-06 03:07 pm (UTC)In my experience, the most recent entry doesn't get a thing (though actually, the most recent entries don't allow comments, because I turned off commenting on new posts some years ago and direct everything to Dreamwidth). The entry that got all the spam was...a fic announcement (pointing to my post in a community) from 2004! No idea why that particular entry was targeted, though I do recall having to clear spam from it in the past. I cleared out the spam and froze that entry to new comments. But if LJ hasn't been notifying about comments lately, there might possibly be other entries that were hit.