Basically, I disagreed with you so much that I started to assume this was the scum version of your playstyle (i.e. similar to your town one, but in service of a predetermined, scummy version of the game rather than being based on an objective view of the game. I don't think I ever accused you of active lurking. This also speaks to your penultimate question.
I actually think you did attack GI -- your tone and so on was constructed that way -- even if you didn't end up putting him on your scumlist. It's still better that you didn't put him there than otherwise, though.
I thought you and Ace have both had weird love-hate low-on-action-high-on-words swipes at one another, which looked fake to me. This also speaks to your last question.
I don't remember the Amrun/Kast catch-up you're alluding to, but I'm going to assume that Amrun's behavior is relevant because I think she's scum, and if my scumreads are doing things that scumreads shouldn't do together, I may need to reevaluate, etc.
I don't think GI's case was crap. I think GI is town. I am OK with supporting town crusades on scum reads, especially if my preferences are relatively niche.