While I know that any story in it has a health warning , yesterday's Evening Herald provided worrying reading ( can't find link ). It was about pubs being made to accept door security from fronts for Continuity and Real IRA.
Then a friend today reminded me of an incident we both witnessed some years ago in Cork. Door staff on a newly opened pub all wore blazers with a crest of some republican club in Belfast. The pub didn't last too long as it turned out. Nevertheless , if there's anything behind the Herald story , it shows that these " dissidents " are merely racketeers.