Ok, but there are laws involved here. In Romania, you can't be president if you are under 35 years old, or, among others, if you have a criminal record. The people that were stopped from running for president weren't barred because they went against the mainstream parties, but because they openly promoted personalities that were doing the equivalent of the Holocaust in Romania. This is punishable by law by up to 3 years in jail, and they're being actively investigated.

The lady in this post was previously denied her run in the summer of last year, and she kept quiet about it until now because they probably told her they won't pursue it further if she steps back. She took the deal, probably because she realises that she'd rather keep grifting on Facebook than spend 3 years in jail.