Where do they say they're considering ads in app? Or you mean with developers including ads in their apps, not in f-droid?

Anyway, I am strongly in support of donationware as the model for compensation of developers. It allows all users to pay what they can whilst not discriminating against those who can't pay.

There's a lot of donationware that receives very substantial donations, and have more money than they would have had had they charged a small flat fee per user. I would never buy software except video games (just because there isn't a particularly expansive foss game suite and pirated games don't automatically update), but I have donated substantially more to foss projects than they could ever charge for their software.

I know free here means freedom not gratis, but I think paywalling software in any way is discriminatory and contrary to promotion of the commons, which is a big part of why I support foss.