Imgur has been totally unusable in the UK for a couple of years - it's an irritant, because it's used for so many image embeds and I'm reluctant to fire up the VPN just so I can see someone's meme that they posted on a forum thread. Nobody has ever used Imgur as a destination site, it's a utility, and any attempts to make it a destination or an app you'd deliberately open are futile.
Reddit isn't so badly impacted, but there are still age-walls around some of the content where it's been deemed "adult" (which encompasses more than just graphic adult imagery).
There's a chrome plugin called 'MirrorImage'[1] that basically rewrites all imgur links/embeds to use a proxy service, it seems to work pretty well to get around it.
I dare say something similar also exists for Firefox
Reddit isn't so badly impacted, but there are still age-walls around some of the content where it's been deemed "adult" (which encompasses more than just graphic adult imagery).