I didn't do a signature campaign yet, but I'm interested in this. As much as I've heard, it will improve the SEO overall, but I'll be able to tell more after I try it out.
This is your first post here, quite surprising that you were not part of any signature campaign. As an owner or participants.
I am not sure what you mean with "but I'll be able to tell more after I try it out" and do you understand how the signature campaign working here.
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sounds like Newbie invasion here.
Whatever Bitcointalk as a high domain authority webpage can be very helpful with improving SEO score, but what after the signature campaign ends and users change his signature?
It is okay but still, I think, links in the contest have a much higher score based on SEO.