No support. I completely agree with Lakaishia. In this case it would prevent people from the option to buy pretty/perma wolves from someone who blocked them only because they bought a wolf at fodder price and released it.
I do see where people are coming from with not allowing any interaction from someone who is blocked, but a bunch of people blocking people for releasing fodder priced wolves could hurt the economy. As Lakaishia said, we shouldn't be excluded from the game by playing a part of the game.
Releasing wolves is vital to the economy, so the best solution in this case would be to sell higher than fodder price, or advertise your wolves for sale in the forums.
EDIT: adding to this to respond to the other side of it. I had a situation on FR where I advertised dragons for sale in the forums and the only interaction I had with a specific user at all was their request for me to hold a dragon for them. I did so for a very long time before reaching out to find out that they had blocked me. I try to be very respectful to everyone, and keep my signature considerate to others, so I have no idea why I was blocked. Now, if this were implemented here, and this came up, I could be blocked from buying a wolf in this situation when I've done nothing wrong. If people didn't block others for any reason what so ever, then I would be more on board with this from an interaction stand point.
People do block others for any reason, and they have a right to. I don't think someone should be prevented from buying a wolf in the FM if they haven't actually done anything to the other person. Obviously, I'm not talking about when they're blocked for a reason like spamming, disrespect, etc, but rather when it's because they don't like their profile, username, wolves, favorite color, etc. And that does happen.