What we need now is a donation service aggregator.
Any donations for this idea?
Take my dollar!
Seems like linktr.ee does a good job of aggregating links. So, the "donate" link could link to that, which then displays a bunch of options. However, I believe that a familiar icon - like the patreon icon - helps people make decisions.
My idea is the other way around, it does not require the content providers to change the way they want to get paid.
I was thinking of an aggregator for the donator, i.e. something that aggregates your multiple accounts on multiple donation services.
There are 3 other projects to which I'd like as well to donate something but they're all using different services ( https://donorbox.org , https://ko-fi.com , https://liberapay.com ) => I don't want to lose control over my donations and creating accounts there as well would have that effect on me.
Therefore, I think that somebody that would like to receive donations should try make multiple options available - hoping for the opposite (that whoever donates will use the specific service that you chose) won't work.