I think what Bunsen is getting at is that long signatures aren't the problem. Massive, block quoting. It's unnecessary, often inappropriate, and it can get to this extreme level that's just... disgusting.

Why do I need to know all four paragraphs of what was said in the above post so I can comment on one line right in the middle? It'd be easier just to go "as far as [the topic of line 3] goes," or just to quote the words to which you're referring.