This is a minor issue for pirates regardless of experience and an issue for the patrons who care about the content over the artist's whims.
Destroying your links and infuriating your patrons will eventually have patrons leave or report and unless you're a shark, Patron will gladly yeet you if they may get in trouble because of you. External links also increase the chance of Patreon telling a creator to immediately revoke any affiliation with Patreon if they go crazy with it and if the artist has been promoting their stuff all over the place they are in for some extreme stress.
Artists directly breaking the only rule Patreon cares about will move to SubscribeStar and Gumroad, where they can also be yeeted if properly reported.>>3983
Remaining in the shadows is one of the only safeguards against piracy. You can't stop someone from trying to access something they really want except by not uploading it and not making them become ridiculously desperate for it. A minority will be willing to force their way through no matter how long and how much effort it takes, even if it costs them a lot more than supporting the artist. This minority should not be underestimated in some extreme cases.