Replying to a post is also counted as a post,tama ba?bale ang silbi tlaga ng signature campaign is you promote their site using your space.
Tama ka sir, you post to promote their site within the forum, kasi bitcointalk ito yun pinakamalaking bitcoin forum sa lahat at pagmamay ari ni Satoshi Nakamoto na gumawa sa Bitcoin. In signature campaigning it depends or will base on your rank, the higher your rank, the higher they pay you per post.