Vanguard has this stuff across many different webpages managed by different groups. The usefulness is that this info is all aggregated in one page, and also includes info not provided by Vanguard.

Not that I need to justify this post to you, but Vanguard does not talk about: heartbeat trades on mutual funds, 529 on unborn child, megabackdoor, SEPP, amongst many other points.

"no one who retires early uses a Roth IRA." This is just patently false and I would recommend researching schemes like ROBS to benefit yourself. Peter Thiel and Mitt Romney are famous examples, the former literally has billions in his Roth. Also, as mentioned in my post, you contribute to your traditional 401k tax-free in your high-earning years and then convert to a Roth Ira in your early retirement slowly.

"If you were planning on exotic types of investment strategies, you're better off doing that in your actual investment choices versus the vehicles you plan on using to do so." If you have a high edge investment strategy, you actually would want to do it in a Roth.

"Tax advantaged accounts are for people who plan on retiring at traditional retirement ages. Brokerage accounts for everything else." This is false. If you have 10M at 25 and will never make a single dollar ever again, you'd still want to contribute to your retirement accounts, albeit in a smaller rate.

"Most people who purchase healthcare do it for healthcare purposes, not investing. Turns out most people don't like high deductibles." Key word: "most". If you are young and healthy, you can take it. In the case of an absolute disaster, you'd quickly hit your deductible limit (e.g. my HDHP has a $3k deductible. Easily handled).

"Who actually says to themselves, 'Yeah, I'm going to set up a backdoor or mega-backdoor tax advantaged account,' but also wants to retire at 67? It just sounds insane to me that you'd put in all of this effort to screw yourself." Look up the SEPP exception.