The "Ignore" concept is half baked, and does nothing to keep the peace on the bbs.
In band camp on BW NNTP servers we had "Kill file" where you never had to see that persons name or post ever again. You do not see when or if they reply to your post, so temptation is removed. Ignore is an ultra false positive of swiss cheese. it actually encourages someone to look what the one ignored is saying by just seeing that they posted to you. with Ignore one is still harassed, and will likely respond.
Better yet is Block like on FB. You see nothing they see nothing. No temptation at all. The narcissist who harass are 100% cut off from any of your post, reading or replying.
If you want peace around here and a more stable and inviting environment, that's what it will take. These trash can kickers aren't going to heed to anything but that, the choice to harass is removed
Locks are for honest people.