Publishing a Story that I have published from other sites - Yay or Nay?
Normally how it works in RR is that you publish your story here, get popular, and then go to sites like Amazon to professionally publish your work. Only then are you obligated to delete the majority of your work here since its a requirement for publishing.
RR is okay with publishing stories you published in other sites, as long as it is yours, but other sites might not want you to publish your story in other sites like RR. You have to check on them.
This would get even more complicated if you want to monetize your story. There would be more rules to sift through.
None of these platforms demand exclusivity; sometimes they'll approach people with projects and propose a deal that involves exclusivity, but you'll know when that happens.
For Patreon I post several chapters ahead of what's free-to-read.