I find it annoying how activity status will update on an account even when the player hasn’t rolled over, and they can’t actually do anything on the site.
I usually have one of my accounts frozen, but I’ll hit switch account frequently to check things on my other account (how many GB I have, event currency count, if I have messages, etc.). It makes it appear to anyone checking on my profile that I was just active, so they’ll send me messages/stud requests/trade offers expecting me to respond.

I think the Last Active should only list the last time the player loaded a page on the site while being rolled over

people may have their own reasons for wanting it the other way, so it could be an account setting to have it on/off