I pay the $2/month version. Supports the dev, and keeps an otherwise unused credit card active. And considering this is now the only form of social media and/or interacting with other people online I use, I figure it's worth two bucks a month. The same way the $15 or so I didn't post month, spread across multiple patreon accounts, is worth it to support the small handful of content creators that make the vast majority of my daily entertainment.

I've been trying to take two stances lately. The first being the idea of "if you're not the customer, you're the product."

And the second being the CGPGrey method. Which is basically, if an app or service is important to me, I specifically WANT it to be a paid app/service. If the app in question doesn't have a clear path to being financially viable for those making/running it, there's too much risk that the dev may eventually have to stop working on it in order to go do something else that can earn them a living.

Or no, something being open source, or not, did not change this equation. People gotta live.