I prefer signatures campaigns that pays in btc because I do not hold any altcoin. I do not see any stability in altcoins prices and it is even more volatile than bitcoin. and I believe that most of distributed coins are worthless
Agreed with you point of view!!.Just sharing an incident-I only once joined an altcoin avatar campaign but the campaign manager made us late payment but luckily that altcoin's price boomed up from 0.007 to 0.025btc an i get a nice payout for 1 week that was more than my signature payout at that time.
Well i also think that one should do some quick research about altcoin before joining its signature or other promotional campaign.
That is the positive side of joining alt coins signature campaign
But, we will need to have knowledge of trading and market price to know which coin that has the potential to launch upwards and the one that will stay in the same spot
and we need to be careful too with this campaign, Candle coin opened their own campaign and tried to put virus on their wallet
and some of them are running away without payment or a late payment
So right now I'll stick with Bitcoin based campaign, Thank you