Wouldn’t matter. Having active players help, inactive players make no difference either way.
The Purge meter resetting every night is not strictly speaking a bug, it’s intended that way, even if it’s a pity. I myself suffer from it, as a solo player on online officials who can’t dedicate 5+ hours every day to the game (haven’t had a Purge since the change).
It IS a change from how it used to work, where you could slowly but surely build up your Purge meter, over a long time if need be. I found that much preferable, but they changed it a while back, when the Purge was retooled. There were a lot of good changes to the Purge that time (such as human enemies in many more locations), but this was IMO not one of them.