X is just super famous and pays in $, so one thinks to get visibility there, then move to other places too like Instagram, monetize there too and spread everywhere... Also earn $ sounds more cool than hive, eth or sol... But it then becomes a work to keep up the engagement, the impressions, the lights on you, you can't have a week of break or you are fucked up, it's too stressful for most of the people, on the other hand here you just do what you want, daily, weekly etc... No pressure to be known forever