A once warm and funny online community has been hijacked – but remember when Twitter for sport fans was fun?

There is an issue in most British cities these days with the sheer density of hi-vis clothing in circulation. Walk through any busy urban location and it can take a while to adjust to the fact that pretty much everyone and everything is draped in some shade of luminous yellow, an entire world clamouring to be seen before the other things are seen.

It raises some interesting questions. If everything is hi-vis, is anything ever actually just vis? If you were, for example, to walk past a cyclist and an Argos delivery driver being arrested by a vanload of police, watched by a group of builders and 400 members of a charity walk, is there a danger the entire spectacle will be completely invisible, that all we have in this scenario is emphasis, hi-vis on top of hi-vis?