Great suggestions, thank you. Some will be more difficult to do than others.

filter up by Post-Vote i.e: Count a Vote if a Vote on a Post was already made

Do you mean that if someone upvotes the post, then the upvote would count as a vote on the poll?

Edit: Maybe add up a Pre-Check if the User met all the Requirements before posting the json to chain.

Yes, it would be good for better user experience if the frontend can let the user know if all filter requirements are met, or if not, which ones aren't. But, of course, we cannot prevent users from posting a custom_json if they want to do it manually. If it doesn't meet the filters, we will just ignore the custom_json.