Certainly, I choose to pass on may of these tacky ways of avoiding stating that the bore is in poor condition. When I was bidding on rifles from Michael's collection on Amoskeag, I certainly paid attention to bore condition. I found that, at least in the one instance of the rifle I bought, I got exactly what they described.
Gunrunner Auctions is another place where bore condition is almost always mentioned. I have my first purchase from them awaiting me at the LGS so I will see how honest they are.
If we patronize auctions where bore condition is honestly described and rat out those where it is not, we can do our part to improve the game.
I won't buy a firearm from a gunshow or shop if the bore is full of dust and lint and the dealer won't run a patch through it so I can inspect it. I don't lose sleep if I walk away from a few guns now and then.