Half of them provide discord access and 75% a custom rss feed for a subscriber only podcast in my list. And frankly, I only take advantage of a couple of those. Mostly I just do it to throw a few dollars to stuff I like and don't use the perks. I can't be the only one.
This for me. I don't use patreon perks for the people I support on an ongoing basis. I have subscribed for perks (templates for some productivity tool) and then unsubscribed a couple of months later, but that wasn't an ongoing creator I watch all the time. I guess getting my SMBC comics by email is convenient but I already have an RSS feed reader and early access isn't important.