IMHO, everyone has something to contribute, and most certainly everyone has some questions.
BUT!
At least
you took the time to reply....
Some 40 or 50 others didn't even bother with that....
P.S. I was the biggest noob here at one point (by far). That ended by me just plain jumping in, asking a ton of questions, turning the answers into full blown conversations, and then looking at what we could do with that information.
Nobody is useless here, unless they are 1) not contributing at all, or 2) passing bogus information as facts. Just remember to always seperate facts from opinion.