Uhh, hate to break it to you but startups don't get "special valuations" because someone calls them startups. That's just not how it works. There's a little thing called "comps" that are used when companies get valued and no banker says "oh thats a startup so their valuation is different".
Source: M&A guy.
Is this condescending tone necessary?
I was suggesting growth plays a large role in why startups are valued differently than established businesses, and I don't see how you can argue that a rapid growth company will be valued according to the same metrics as a company with very low growth.
Is it necessary to be so matter-of-fact and imply that people aren't being rational (and thus inferior to your clearly rational point of view ). You're not wrong, the tone isn't necessary but I guess I was just following your lead.