I stopped using Twitter as soon as Musk bought it precisely for moral reasons. I'm not going to help someone who wrongly accuses people of being pedophiles make more money. There are of course many, many, many other moral reasons to not support Musk but the pedophile incident is so cut and dry that there was moral (non-partisan) reason to bail on day 1 of Musk ownership.
An argument that someone could make, although maybe it's a bit logically suspect, is that Twitter is losing money for every user, and using Twitter is costing Musk more money than it's generating for him.
If I were acting in order to maximize losses, I think the latter would be more substantial. It also has the added benefit of not being exposed to the musings of Musk himself and the fascist crowd his reign has attracted to Twitter.