I check all three. I don't look daily, but I do often. I do my best to do my research when you catch my attention, before I send that PM. I am with several that has posted before me, that it would be most helpful to be more specific on where u are than north dallas or DFW. As far as the request forum, I do browse it when I am looking for something short notice. I have a unpredictable schedule and tough to plan ahead at times. Plus, thus far I have had 3 nice encounters from ladies on the ISO that answered ads, which told me they were here, even though they had not posted anywhere else letting anyone know they were here visiting.
So to me your work and time in posting does not go in vain and blind eyes.