It seems animesuge.to, anix.to and aniwave.to closed down with the exact same message, though there may be a few other sites that closed down in a similar way.
That text is included in every site that was shut down. All I can do is speculate, but I think the site owners were forced to write that. It's unlikely that every pirate site owner suddenly had a change of heart in regards to piracy.
Probably. Unless they're only using that as a hook where there are still other forces not directly involved in the creative/hosting process that are taking 90% of the profits.
EDIT: just realized you're probably talking about stuff like patreon where you actually just pay the creators, in which case, absolutely! I've got a number of patreons I'm actively supporting