The easiest way is to ask if you can join the signature campaign and if they reply you can. There is no good reason to turn down people trying to promote you just because of trust. This obsession with trust just gives the admins or whatever they called more power. It really irritates me because when i see red twist i want it to be because of a scammer or criminal not other be. It's even being used for what it's meant for bit admits will argue toll they blue. I day just take their power away.
Btw i was treated well in the last two signatures i was in and paid well too. Just post well. That's all.
Also many people posting here are talking utter bs. Of you run an Pico you want all the help you can get. There so many now so any ico should appreciate what they get or they get no help at all. There so many ico so promoters are scarce. Failong your ico because you have no one wearing your signature is stupid.