Hello, everybody! I faced this problem when developing signature.module. The module appends user's signature dynamically nodes and comments. So, I think a signature should be added to the end of a body. The problem is at least with forum.module, which adds "next-topic-link" before a signature. (This is not OK to have signature after "next-topic-link".). This is because hook_view() is called before hook_nodeapi(). Normally, if "next-topic-link" was in hook_nodeapi, I could decrease my module's weight, so it would fix it. But it's in hook_view. The solution I found is to add signature at hook_hodeapi(when $op == 'view'), but then of course, signature is added to the body when editing the node, what is not good since it is already added dynamically. I can remove it when $op == 'preprocessing', but it's a 'dirty fix'. And please let me know what you think about my variant. May be someone can suggest a better implementation? P.S. I posted it here, because I believe it's a question for 'gurus'. Dmitry