If the question itself is distasteful, well, that's surprising to me and I clearly still have much to learn. Enlighten me?
You know, the most damning things are usually veiled accusations -- the sort of thing where it puts the accused in a position of looking like an overly defensive lunatic reading in something not there if they try to defend themselves while thoroughly dragging their name through the mud.
If it really doesn't matter to you, leave it be. Your curiosity does not have to be satisfied. Since he has stakes in this and this is apparently idle curiosity on your part, it just looks bad.
(I don't really care. I have zero skin in this game. I am just hoping that answers your question. I am weird like that about certain things. Shrug.)
For one thing, Sam would emphatically not be doing his job as a VC if he didn't make himself fully and readily available to the most successful YC companies. He would be doing a huge disservice to YC's LPs if he didn't provide any assistance possible in preserving literally millions of dollars for them.