i do not know where all the good campaingns gone and why did any new camapingn is not openning. sigmature campaingn are the good way to earn money rather than fauceting for small amount of coins they saves lot of time and also where a good way people can discuss about their problems
They might be good for you to earn money but the operators probably figured it wasn't that great of a way or that cost effective to pay as much as they were paying out. There's still some decent campaigns about but certainly not as many and its harder to get get on the very best ones but that's just the market for you. Maybe some more will open up in the future but the good old days of earning over 1btc a month on some campaigns are likely gone for good.