I know it happens on forums, but why is it that most of the time when I provide an answer ( which I think is correct) to help someone, and someone else gives about the same answer in the following post ( after a long interval), the OP doesn't even acknowledge my answer?

I can't get used to the lack of respect

It's so frustrating I wonder why I'm investing my time.
I think I'll leave forums be for a couple of months to cool off and invest efforts in more rewarding occupations