@Gargron I was for quote-posts but when I read the reasonings of others I reconsidered. Opting in makes more sense imo. It should be off by default, with folks having that option turned on if they want.
The biggest risk is reproducing the worst of Twitter which was when people (myself included) quote-tweeted extremists to respond to them or dunk on them, inadvertently boosting them instead of actually stopping them. I hope that won't be replicated on Mastodon.