Compared to participation in social networks, participation in bounty signing campaigns seems to me to have advantages. To make money in subscription campaigns, it is important to have a high-ranked account. And this is not so easy to achieve. This is especially noticeable on the bitcointalk forum, where the rank of full member and above is no longer possible to achieve. Therefore, there are not so many participants in signature campaigns, especially if there is also a limit in ranks.
But, of course, the rewards in bounty campaigns are no longer comparable to those of a few years ago. Therefore, to participate in them or not, remains the choice of everyone.