3. signature campaign is bad, too greedy you ask people to post 50 while others are 20-30, ark even doesn't require a post, that is why this campaign only attracts few people.
50 posts over 3 months is greedy? The ones with 20-30 are often 20-30 a month somethimes even a week.
A quick check in the altcoin market place,
ARK 1 post/week
ALTEX 5 post/week
Wings 20 posts/month
Ceal 15 posts/week
Quintessence 15 posts/week
CryptoJacks 36 posts/week
Incent 30 post/2 months
Antshares 20 post/month
So Inchains 17 posts/month is slightly below average for signature campaigns.