Yes, you're right, I hadn't thought of that! Thank you for your constructive feedback.

How to make it obvious you are from the UK, without mentioning you are from the UK. :D

Is finding bright flashing fullscreen images annoying, and knowing it can cause medical issues for some people a uniquely british thing?

I didn't mean to be snarky in any way, and I cannot really explain the why, but the following happened:

Read your comment -> wild "commenter must be British" thought appeared -> clicked profile -> co.uk checks out -> I found this whole experience funny enough in the moment to comment.

It can be worth it, for a better discourse, to add some context to your post from the onset. "I have no idea why, if its something about your wording or something else, but I immediately thought you were from the uk". Your post comes across as pretty snarky/condenscending.