I remember it was at the towards the top of the box as a triangle yeah, iirc, no idea if it worked with it avatars on/off back then or if it was part of the avatar element.
Loading the OCUK forum site when coming from Google (or any other third party site, bing/youtube link etc) shows this error if you have an adblocker enabled.
It seems to happen only when you have your Adblocker enabled on the site you're coming from, so if you have your AdBlocker enabled on Google, but Disabled on OCUK it'll continue to happen.
https://www.google.com/search?q=https://forums.overclockers.co.uk/threads/
I'm using uBlock Origin (1.42.4) on Chrome (Version 101.0.4951.41).
Is this intended? Not a big deal to me personally as I don't use Google to find the forums lol, just thought it was worth mentioning.