Cheeky domains

I have a "shop" on Tindie (albeit currently all zero stock until they get working again, if ever) and now one on "Lectronz". Ages ago I made tindie.uk domain, it web redirects to the shop on Tindie. Was a bit of fun. And a shortcut for me. Now I have a Lectronz shop, so I made lectronz.uk in a similar way. But this is a tad naughty maybe. Well maybe. As far as I know neither have a UK trademark so…