Supermium

[Dave-H]

I guess things like Cloudflare captchas are more a defence against bots than anything else.
A forum operator, for instance, wouldn't want a bot potentially harvesting all their members' e-mail addresses, so it is fundamentally privacy concerns.
Something which works in some browsers and blocks the site in others doesn't make sense, though, and we're not talking about ancient browsers here.

[j7n]

I was able to load forum.zdoom.org with User Agent Switcher in Supermium 132, but not in New Moon where it keeps cycling on "finished TLS handshake". The site is focused on an old video game. Having it require the latest software to work rubs me the wrong way, which is also consistent with their new versions require modern Windows. It is not essential for me to read this site. But I suspect how this may happen with more servers soon.