I think the cross-posting blasphemy mostly bothers people when it's done in a "set it and forget it" way, where the person doesn't interact with the platform other than in this automated form. (There are people now who'd take issue with any cross-posting at all, but I don't think they're a majority.)
@digital_carver Toot Bookmarklet works great, turning websites you want to share on Mastodon easy. More here: https://www.mguhlin.org/2022/11/a-toot-bookmarklet-for-mastodon.html
As to Pocket, anything saved there is shared via Twitter.
@mguhlin
I don't grasp this flow diagram fully though. Does this mean every post of yours goes through Pocket? Or is this only for some bookmarks/things you quote from websites or your feed reader etc.? What does the Toot Bookmarklet do (I haven't come across it before)?