I think for the most part it is not rational, or it is out of fear (of something). I don't own any XMR and I don't think it is a scam I have chatted with you (on poloniex as "addi") and fluffypony here, and have found you guys helpful.
I think one just has to rise above it and with attackers the best, and accept that this is a wild and chaotic place at times. All coins get attacked and it's probably good because to survive, and be taken on by the masses the coin will probably have to a good community and honest unflappable people involved.

If we wish people the best we don't even have to understand why.