If I make an appointment for a private tasting, I let them know I am ITB. It seems dishonest, somehow, not to. Plus I am hoping it will allow them to gauge what the level of interest and questions might be. I have had the feeling that other wineries feel it is helpful.
I would never ask for a comp or discount. When it comes time to pay, I put my business card with my credit card, hand it to them, and let them handle it as they see fit.
Interesting thread, and I am not ITB and unless the Blog is about the particular wine, I cannot imagine why the person would even feel entitled to a bottle.
Years ago, I was in retail. Now, I’m a lawyer. When in retail, I once offered a worker of a contractor doing some improvements to our store a discount. He remarked that they were not offering me a discount and did not want or expect one in return. Similarly, as a lawyer I’ve had work done to my house by clients. When asked in advance for a discount on fees in exchange for a promise of a future work, I always find it easier to say I won’t ask them for a deal and accordingly, my fee is my fee.