I think I notice that sexuality can a bit more fluid over there and there isn't so much hang-ups regarding gay and straight as there is in western countries. Or something like that anyway.
Others have given some great advice, but I can share your sentiment completely, and usually avoid booking hotels on that side of Surawong Road (although my last trip I stayed at Le Meridien and will be staying at the Raya in my upcoming trip.. I'm just going to have to 'suck it up' as they say..)
I've had no issue bringing guests back to my room when I stayed at Ibis Styles. Just walk with your gentleman of the evening through the entrance, past the reception desks and straight to the lifts.
I agree with you, but can understand if it was a 'once off' customer, but because Jason is quite a regular customer and known to the bar, it is a little disrespectful, no?
I visited A-Bomb in January of this year as I was staying at the hotel directly above. On the night I went, it was very low on customer numbers (perhaps 3 or 4), and very low on boy numbers (I think only 1 or 2). The show still went on but I think it was outsourced as these boys left straight after the show. I only went that one time so I cannot comment on whether it would be busier on other nights or not.