What does YMMV mean...

Disclaimer that your experience could differ from what is being reported.

YMMV-- Your Mileage May Vary, a catch-all phrase to remind that tastes differ, and experiences may vary from person to person.

The urban dicitionary is the go to source for hobby terminology. Also there's help to be found in the TER "self help center" as well

do not expect this level of service, she may do it with you or not.

...instruction manual in the self-help center before being allowed to post.  They should have to click a tab acknowledging they have read it or else they'd be prevented from posting.

I can't tell you how many times I have included that instruction in a reply to a newb's question here.  While it's not perfect, it's the best place to start for anyone, male or female.

Swim

'just because she did it, whatever it is, does not mean she will do it with her.  I know providers have asked guys to say she did a cbj in the review, when she really did a bbbj.  This way she has a choice whether or not to use a condom for the bj with other guys.  I know of a provider in my area (that I have not seen) whose profile says bbbj, yet her reviews say cbj.  I have not read them all, but that's what the most recent ones say.  While it may say one thing on her profile, that does not mean she will do it with everyone she sees.

Swim