This was one of the reasons I made my profile visible to only a few people.
I love interacting with people on the forum, but I found PMs from people asking questions, or striking up conversations, a little disconcerting.
I always directed them to ask their question, or interact, on the threads, because if they were thinking it, there would be other people who were wanting an answer too.
No no, as I said earlier, it's not a problem. If it was offensive in anyway I would just have reported and blocked. I just needed to get a feel as to what others do.
And as I am a cautious person I like to know what my options are before making knee-jerk reactions.