I'm not fond of the Blizzard Store mounts, because most of them are unique and look great. The bat was the worst offended, imo, as people had been clamoring for a bat mount for years, and now you can only get one by paying for it, while -- before that point, Blizzard always spewed some 'it's too hard' bullshit. As they always do when they just don't feel like doing it. Or it is somehow against their design standards.
However, stop trying to guilt-trip people into not buying these, just because Blizzard wants to profit off things people desperately want. All they want is a pretty mount. It's not as if they go "Ha, ha, ha! Now we are supporting Blizzard's Pet Store conduct, so that they can continue selling more and more mounts in the store. Mu-ha-ha. <Devilish horns>"
They don't. They may hate the fact that it's a bought store mount just as much as you, but they just want the pretty mount model they've loved since the moment they first saw the datamined model. They're not your enemies, they're victims of a catch-22 situation. They can buy it, and enjoy their new mount, but some idiots will /spit at them, insult them, raidkick them, guilt-trip them because they DARED use their own money to buy a store mount. If they don't, well, then they don't have the mount that they so badly want. Some people have wanted a chimaera/chimera and bat mount since forever. Don't tell them that buying those means that they're filthy capitalists that feed 'Bli$$ard's greed'.