Three golden rules. Other than that you can comment with pretty much whatever you like, though I’d appreciate if you stay on topic…
1. Don’t be a jackass. Criticize the ideas presented in posts or other comments all you like, but keep any personal insults to yourself.
2. pLeASe kn0w h0W 2 tyPE. Or learn before commenting here.
3. Don’t spam. Just don’t.