Jean-Olivier Chénier, devout monarchist and king of Republic of Fwuvoghor allowed dissidents to remain and even gave some positions of power to try to keep the peace.
Jean Olivier didn't have the support to kick out Mordred, who always had Belzer's backing. Besides, he kept getting voted as Arch Priest (which is why I assume JO hired Phoebe to snipe Mordred). Mordred did conspire against JO, but he always took care to do it covertly, making friends here and there, and biding his time during JO's regime and after Ben took power. Whereas both JO and Felquiste were very much overt, both called for rebellions to seize power. Worked for JO, not so much for Felquiste.
Mordred Lefanis, self-proclaimed republican, banned the monarchists when he gained power and installed only his puppets in order to assure complete control over the realm, putting an end to the great power struggles that were what made the realm fun.
Hoho. I recall that Felquiste rebelled against Ben's, along with the Terosists. He got auto banned for it. Why would Mordred have stood idly by and let him take power in the name of the theocrats? Mordred did ban Capone, but before Mordred rebelled against Ben's himself, seizing power in the name of the republicans. Don't think he banned Glithstra Valymtor, the only other of the monarchists I remember. IIRC, she left for Enweil of her own accord.