There is no right or wrong in this case, it's a matter of perspective.
I don't see mentioning about known online communities to be a problem, however, you may want to keep it a bit more generic (not to paint yourself as someone with no individual knowledge and fully dependent on Stack Overflow or other communities for coding, testing, debugging or troubleshooting).
Don't directly say something like "post"I post/ask on site", because it involves the risk of possible data/code leak, you can say something like
"If I'm hit with a roadblock that I can't seem to overcome after initial debugging attempts from my side, I look for answers available in online technical communities and forums, like Stack Overflow".