I don't see the problem. HTTPS is basic internet hygiene. It's no worse than telling people they should mind their body odor when they're in a space with a lot of other people. Possibly indelicate, but undoubtedly true.
Will it always be a "low profile blog"? It just got on the front page of HN, which is not exactly "low profile".
As for what risk, two words: Great Cannon. For those who don't know, it's a well-known MITM attacker which injects JavaScript code on non-HTTPS pages, the injected JavaScript being used to do distributed denial of service attacks on other sites. Using HTTPS protects against these kinds of attacks.
It results in your browsing history being tracked and sometimes sold by your access point and ISP at a page level instead of just domain level, results in injected ads and banners on some access points, results in injected trackers on Verizon, and more broadly it permits unknown third parties to alter the content of your website.
Your analogy is flawed because this is Hackernews and, superior beings that we are, we understand body odor to be a symptom of a microbiome that's out of whack due to "modern life". Accordingly, we don't bathe in order to cultivate healthy skin bacteria; some of us wallow in mud instead.
I'm not sure you read what I wrote. At no point did I say to bathe, or in fact proffer any treatment at all for body odor. I merely pointed out that refusing to deal with it when you're in close quarters with a large number of people is antisocial. If somehow wallowing in mud treats it for someone, then that's what they should be doing. The problem is knowing how to solve it and refusing to do so.