Yeah, I think a lot of the people who are against are the ones who don’t like the ad-removal model, because you are paying to remove ads on an app that uses a platform whose foundation is built against ads and tracking. The subscription model or one-time payment for life is fair IMO; people are free to support the dev (and please support the lemmy devs and instance admins too!). It’s the ads (and tracking that come with it) that’s kinda weird.
Don’t forget they won’t help you until you spend a couple of thousands out of pocket first.