Many creators mentioning they lost hundreds of their patrons suddenly and patrons confused as to why their payments are being declined. Patreon is such an old company that hasnt done anything to improve their service for years while the CEO makes youtube videos and seemingly nothing with the company. I hate how much of a monopoly they have in the space, they clearly have no vision for improving their website or app.
A number of these alternatives exist but the reality is that if a creator advertises Patreon vs advertises Liberapay (or another alternative) you get more people signing up for the Patreon because it has better name recognition / marketing / whatever. In my opinion they got to their dominant position mostly* because "we" let them, and they also stay there because "we" let them.
*And partly because they were one of the earlier platforms (but by no means the first option for crowd-sourced financial support for creators), and they also started with lower fees than they have these days.