Bottom post of the previous page:If you tick antag knowing you're going to spend the entire round erping and you know a lot of people take issue with it and you know it disrupts the round and you know it wastes and antag slot that's basically griefing. If an admin talks to you, tell you it's bad, tell you people dislike it, it's griefing, you should cut it out. You could argue it's not against the rules, and just bad roleplay or gameplay, but it's the same with grey tide. Grey tide was initially just 'bad gameplay' or 'bad roleplay' but it got so bad it was equated to grief because, most of the time, people were repeat offenders who did it over and over after being talked to by admins.
Inaction is still an action if they're wasting antag slots after an admin has told them it bothers people / messes with the round.
It's reasonable to ban someone from antag who knowingly wastes antag slots because it bothers people. As always, admins should PM players who do it post round or on the forums or byond and let them know it's not okay, then after that point you can escalate the issue accordingly with bans on their antag selection. Pretty basic admin shit, but always talk to the player with this vague situation and take the responsibility onto yourself as an admin to personally watch the player so you aren't banning people based on hearsay or vague proof.
ERP is a different subject. ERP in non-critical jobs (critical jobs are defined as heads of staff or most security positions currently) hurts nobody because it has no effect on the gameplay outside of a traitor potentially targeting you and not being able to find you because you're locked in a closet feeling up the mime. But again, if this was reported to an admin, the admin could easily tell the player that was targeted to 'please late join to cut down on the chance you're targeted by antags if you're going to engage in heavy roleplay' because it makes it hard for them to find you in what would normally be a relatively simple task. Traitors also have thermals to counteract ERP hiding making it even less harmful to gameplay in the long run. I've had my target engage in 'heavy roleplay' in a 1 tile box but I found them with thermals eventually through maint. It's pretty much why thermals exist.
So yeah, use your smart admin judgement. PM the player. Things like this are circumstantial and making sweeping bans on things like ERP wastes time. Admins aren't allowed to ERP but do it anyway, that's pretty obvious sign it's going to happen regardless. I've always thought our server doesn't ALLOW ERP, instead we TOLERATE IT to a POINT.