Hi Qazz,
It's not fair for you to make such comments. What he share is his experiences.
From personal experiences with her many moons ago, she a bit 'greedy'. I have no complaints about her services but I am not so happy for her to request for $30 for the 'special privileges' of doing it at her home although I do mention I only paid $20 for Hotel 81 Cosy for two hours. To charge $30 at that time for an hour is poor marketing - I have not visit her since.
It's not about money. If I am happy with her services I will definitely tip her but to ask for $30 upfront tantamount to poor ethnic when her room is definitely not comparable with hotel 81.