Depends on The Time of Day
I have seen a decrease in activity as well, but it also depends upon what time you are out. As far as WSWs, I've met up with Marie a few times (and she's very pleasant even if she's not the best looking), I've seen Larissa out, Tara (extremely skinny WSW, flat chested, early 30s, very nice attitude), and a black-haired WSW that I haven't stopped for yet.
There are still several BSWs out, but too many of them look haggard to me. I did see one out on Martin today in a orange mini-top and miniskirt, but she was with 3 or 4 guys looking to sell, so I didn't stop. I've seen a large-chested BSW wearing a red top with her hair pulled back in a bun (does anyone know her? ), and a few that have been around for a while.
Over by Bragg I met up with Kisha a few times as well within the past weeks (amazing job! Nice body), Marie is definitely available and normally nice. I've seen Cindy back on the block recently (older WSW, leathery face but provides good service) and Ashley. There are a few others out and about, but I've not taken the time to stop.
I don't want to say when I'm normally out, but if you vary your times in one week you'll see a difference. Also, and I can't stress this enough, try new streets/areas! Just recently I met a newer person off Six Forks Rd. Near some lower income housing. There used to be some action off Glennwood Ave but I haven't been that way since there was a raid last year. Look for gas stations that sell those roses in glass tubes; the area more than likely has a drug problem, which means that there are probably some walkers there. Look in the paper where they report gang or drug activities; those will also be other areas to check. Trust me, when things dry up in one area they get filled someone else.