Dogtrousers
Kilometre nibbler
Fanciful because you believe minicab firms are saints who never do anything unethical to get rid of competitors, or what?
I remember Cambridge Green Bikes. Nicked and dumped very quickly, then as soon as the service ended, the dumping stopped too and people started seeing the bikes, as in http://iankitching.me.uk/history/cam/old/green-bike.html
Random vandals wouldn't have stopped. It was political. The same is probably true now, but Lime and similar have deeper pockets.
Minicab firms? There aren't many of those left. Get with it man, it's all uber now.
I'm extremely sceptical of the idea that people are going to the trouble of moving nicely parked lime bikes in order to make a point. But as I say, not impossible.