It comes down to the age old issue... People.
Common sense says leave them in a suitable spot, but some people can't be bothered. The option to end the ride almost anywhere and leave the bike is important, but should be done within reason. But some people struggle with that part.

For as long as dockless bikes and scooters exist, and people can get away with it, the issues will continue. Some might argue that if you are offended by where one parks, and are able to, move it. But that's unfair really as it should be the rider doing that.

Would be nice if there were official spots to leave them. But as an example, if I rode from Lewisham to Forest Hill, and was expected to end the ride at the station, with minimal assist, going up around the corner by Devonshire, I would be compelled not to bother.

More work needs to be done by Lime on its zones, limits and expectations of its riders.