I've had a couple of my posts deleted already (I am guessing because they didn't add anything). I'd like to avoid looking like a schmuck in the future, so for people that have been around here awhile, what is the single best piece of advice that you have for a Bitcoin Talk beginner. Preferably something that isn't covered in the Newbie pinned thread. I have read through that at least three times now
I'm also somewhat new and went through the same thing, initially.
Since you've already read up on the rules, and all that, I'll skip over the usual advice and just share a bit of my experience -- I'd suggest avoiding very short posts.
Not saying "quantity over quality", but you're less likely to have your post removed if you actually took some time & effort to properly write out your thoughts.
Likewise, try and engage in conversations rather than always replying to the first post on a thread, chances are someone's already said something similar to what you wanted to say. You might wanna add to that, or maybe present a different take.
People tend to appreciate dialogue more than just shouting at the wall, as far as I can tell anyway.