[MaxBarraclough]

> I for one see no need

asdffdsa mentioned plain old MITM. I listed several other applicable reasons in my linked comment:

1. It allows an unscrupulous ISP to more easily track your browsing

2. Modern browsers will rightly warn users not to trust the site. This makes the site look bad.

3. It prevents MITM injection of ads, trackers, and most importantly malware. There will always be browser exploits, so they're worth blocking.