WanderingPhilosopher, look, I don’t trust Marapool. Either they or someone there might have bad intentions. I don’t want any fees, I won’t charge 3 BTC or anything like that, but feel free to try. I also have bills to pay, and energy is expensive here. I know there’s an easy tutorial with Marapool, but it usually doesn’t work, and it says it's offline. So I don’t trust it; I’ve tried it before, and it took a long time. I prefer to do it my way—nothing works better.

As for RBF, there’s a lot of FOMO (fear of missing out) and fear involved. It’s not easy to steal from someone if the parameters are set correctly.