I would like to know if there are any decent signature campaigns running? I'm aware of the ones that pay with BTC, I want something that pays with altcoins, preferably not an ICO though, but an alt that has been running for sometime.
It is very difficult for you to search for such campaigns. In January I saw an altcoin pay signature campaign called Taychoyn, It was listed at Bithumb and the price increased many times after the bounty ended.