so with two patreon style sites both of which say "we take security seriously" , until they have a breach, how would you judge which one would take better care of your data?
The information (AFAIK) about their security mechanisms only got released as a result of the breach, so even assuming you knew what the terms were and how to judge good security from bad, you wouldn't have the information until the site got compromised.
I'm aware, I just can't be bothered. Every time I create an account I ask myself "do I care if this gets compromised?". If the answer is no, then it gets a standard password.
As long as you understand that when that site gets compromised, all other sites where you use your standard password get compromised for you as well. Collectively, all those sites getting compromised for you may be enough of a reason to consider password managers.
The information (AFAIK) about their security mechanisms only got released as a result of the breach, so even assuming you knew what the terms were and how to judge good security from bad, you wouldn't have the information until the site got compromised.
This is a very common problem, some more examples here http://raesene.github.io/blog/2014/06/08/finding-security/