...some time ago I started to mention alt+del at my games and yet nobody knew or remembered this feature, even experienced players - it's kinda weird, because this is not new feature in WA

I remember the translucency caused some slight lags back in the days, but with v3.8 all works smooth - at least for me...

...same thing seem to happen with the color prefixes that work in private messages (wormnet, game lobby) - almost everybody asks how did I write the message in color - the game still keeps it's hoary secrets