I'd argue that does hurt players when they queue into dead camps then can't find any actual PvP, or have no idea what build to put together because the rulesets are all over the place. These sort of things leave a sour taste that turns potential PvPers away. The obsolete names are kinda part of the same problem, someone sees names from 3-4 years ago with dead populations across, may come to the conclusion that ZOS doesn't care about PvP, so neither should they.IDK if they're hurting anyone to have an under 50 and a no-cp, no-proc campaign, respectively.
Gray Host and Blackreach still pop lock during prime time, while Ravenwatch and Icereach sit mostly empty 24/7, reminding us that their respective rulesets are a failure (sorry if you like them, but they are dead camps). Would be really cool if they trimmed down to 3 camps with one clear and balanced ruleset, not this confusing spread out mess.
Don't even care which ruleset, just pick one and balance it.