For hobby sites, you could argue (I think the argument is still weak), about the MITM threat being low enough to not be worth doing something, but this is a security blog.
Security blogs matter, because people follow their guidance. This makes them a potentially attractive target for some groups of people.
I basically expect that sort of attack to only be pulled off by a state actor or by a black hat convention for the lolz.
Ads injection is a relatively benign kind of tampering. It could be much more creative and sinister.
Things should be https by default these days. There's zero downside anymore.
Reading a blog post about linux security? Do you actually care if the NSA/FBI/CIA/FDA/USDA or anyone else knows you read this particular blog post?
I could understand this argument if we were talking about a social media site, or something more substantial. But a blog post?
> authenticity
It's a linux security blog post. While it's technically possible for a MITM to get in between an inject false information... about linux security? Is that really a real threat?
> integrity
Maybe a real problem, assuming a malicious MITM is trying to target you. But, I suspect, there are other avenues that'd be more fruitful in that case. Just hoping that someone would visit an http site seems like a far fetched concern.