It's the shit people usually type for poll that bothers me. A simple Ban or Don't Ban I would vote Don't. When people say "No, he doesn't hack" as an option, I do not like voting it.

Voted NO as INCONCLUSIVE

There are things that seem like signs of walling, as knowing position on certain occasions and timing of passage. Some spots he wont even go near as he "knows" people are crouch camping, IE: The hostie window with T in corner. Need more evidence. Don't jump the gun so fast. Take you time with walling and make sure there is a big amount of evidence when they don't directly trace.