*IF* you are an organiser and are worried someone attending your event shouldn't be particpating, you can check the list of the ineligible players, just as much as, as a player, you can check the list of ineligible Organizers.
Those list will only let you know the player id, person's name, country, start of inegibility and end of innegibility. That's it, everything else is private.
Anyone involved in one of those issues (judges, TO, LO, LL) are professionnals and are not at ease to discuss those matters, so you would only get hearsay and gossips from people who don't know the whole story.