As a semi casual raider I wouldn't mind letting tryhards know their DPS's.
Even if it means people will start to police who isn't doing their rotation.

You could have it in the PF Recruitment Criteria as a check mark for "enable ACT"
This way people who join the party know what they are in for.

you can still do ACT disabled if you want a more natural experience with less of a chance to get harassed when you skip a raidwide cause you had to take a sip of your morning coffee.