Is it fair to assume women posting ads between midnight and six are probably druggies?
There's a difference between (1) independent SPs who post during the wee hours of the night; (2) non-independent SPs whose manager posts on their behalf during the wee hours; and (3) SPs who post 24-hr availability during non-wee hours.
I think erotic services should be seen as a 24-hr business. There's clearly a modest but perhaps non-negligible demand after midnight (I know I often feel sleepless, hot and bothered at 3 AM, and wouldn't mind looking for a little nookie if easily available).
So I'm not in favour of showing prejudice toward SPs who are available after midnight, whether they advertise at this time or not. It should of course be totally up to individual SPs to choose their schedule, just as they choose their menu.
Some of Maggie's less popular girls are advertised as available 24 hrs. I know for a fact they're not druggies.
I've been told by one of them she doesn't mind—though I'm not sure how busy an "after-midnight girl" gets. I imagine service quality tends to drop off in the wee hours, though I've not yet personally tested this.
There must be "wee-hour" pooners out there with some good stories.