Because everyone around you is doing it, which informs the social dynamic you have to exist in.
Discussion
Watch: I have no zaps on my profile. There is absolutely no way I will ever take off on this network, even if my posts are 1000x better than "repost cat pics for zaps."
Predatory, dysfunctional social dynamics cannot simply be ignored. They engulf and consume everything they encounter. They are like cancers.