I would had expected that we all long ago learnt in the elementary school (aka grammar school) playground that sometime it's just not worth it and there's much more to life than harboring a grudge.
Right now, I'm getting the impression of a petulant kid who is very angry that another kid whom has insulted him last week is now playing in *HIS* playground (silly kid, it's school's playground, so he has no such claims), and go to any length to chase down the other kid no matter how far they were initially apart and just pestering the kid as the rest of kids watch on and because of the pestering, the recess isn't as fun.
Is it really worth it, at expense of ruining everybody's recess to extract a public apology? One of most adult thing we can do is to realize there are times when it is just not worth it and move on. I do indeed have several similar questions in my life I would like to ask but when I think about it, I realize that even if I knew the answers, it wouldn't really change things whether for better or worse. I'd much rather enjoy the life so I just let it go and choose to dwell on more productive things.
It would be entirely another thing if Bob had came in WC and badgered Col, but that was not the case as far as I can see it. So far Bob has stayed out of WC, so I'm failing to see what is the real issue beyond wanting to 'clear the air', which Oumahexi already discussed. If there's any badgering, it's actually reverse, and now it's not just Bob but Wazz as well. I do sincerely hope that we're not so bent on clearing the air that we end up clearing the house as well. It may not appear to be that way, but do believe me - more often than not, it comes together.
Finally, there is a reason for moderation, and while I do not agree with deleting of the threads and will indeed write a note to them to re-consider their policies, I do believe that they are in power to do what as they please for the best of the forums, and the power includes editing and deleting contents that are unnecessarily inflammatory. It must not be forgotten that this is a private venue and as such, there are no guarantees or rights; only privileges that can be given and taken away. I do not think it is good etiquette to publicly express your displeasure or disagreement with a moderator's action, and this should be taken up with another moderator or the administrator for resolution instead of publicly airing it here. It goes back to the clearing the house again.
Anyway, I think the thread has went on long enough; the reasons and speculations already has been given and we're just about repeat the cycle, which just does nothing beyond stirring the pot. I'm going to report to mod and ask them to lock this thread, though that's up to them to concur or not. Even if they do not concur (and they are free to do so), I do encourage everybody else to move on.
There's a reason for the old saying: "Don't feed the trolls."