Tabasco lists vinegar first. When I buy pepper sauce, I am buying it for the pepper. So, I want it to be the first ingredient. That is actually remarkably rare. Apparently vinegar is cheaper.
Never seen Buffalo.
It’s just silly to insist on vinegar- fermented sauces are delicious, sriracha is mostly pepper paste, etc
For my purposes it has garlic in it, making it unusable. But for fermentation, miso does the job.