In general, the changes are indeed positive if you want to stay competitive with the other signature campaigns. IMHO, for me a campaign becomes more attractive when the rate/per post goes up.
The competition between the mixers is going to a next level and we see these changes because Webmixer.io is giving straight 6$ per post
➥ No minimum quota/$6 per post, maximum 25 posts
and this is not the end. Another mixer (TUMBLER.IO ) is already offering the highest paying review campaign, signature and avatar design. I am sure when Royse launches its signature campaign, it will melt faces.