Hm. Of course it's unprofessional to hit on a support agent, but the way this blog-post is shit-talking about their very own customers (even joking that one of them is probably too poor for champagne because they are on the free-side of their freemium plan) seems absolutely bad to me.

Edit: Especially since the product focusses on being "end-to-end-encrypted" and privacy minded, and they just purposely "leak" their customer conversations like that.