I know signature campagns exists on this forum for very log time . I was wondering , do they really help to promote ICO , i know they spend a lot of money to pay bitcointalk members to wear their singatures and make posts . Do they really make profit out of this ?
Signature campaign is still one of the very effective promotion for ICOs. There are many potential ICOinvestor in bitcointalk forum who will see the signature of a user and they will click the link of the ico. It was a big help to expose their project or ICO to the investor.