I'm not sold because:

1. "It’s difficult to say these things without coming across as arrogant, but I’ve been managing servers since 2006."

You have experience manager servers, so for you it's not a big deal. But maybe software developers who aren't devops don't want to worry about it and just want to write code and ship a project?

2. If you're launching a new product as a solo developer, isn't it faster to just build an MVP on the cloud, validate the idea, get some traction, and eventually migrate to cheaper hosting if you do become the x% that gets product/market fit and do need to scale?

3. "Look, first of all, you’re as unique as the other 1000 peanut gallery enjoyers that have made the same astute observation before you. Congratulations. But you’re absolutely missing the point."

What's with the tone? Is it supposed to be funny? Does it help getting the point across?