Allow to add custom info (just string key-value is enough) to sidebar below standard counters like hits, position, etc. This can be implemented similar to room visuals. For simplicity it could be stored per room (with bound object's id) and even called per room like room.visual.objectData(objectId, {role: 'miner', spawnedBy: 'E48N14'})

This is kinda complimentary to this suggestion and seems like it should be pretty easy to implement.

@theincrediblewheelofcheese this does not check for creeps though (but maybe it shouldn't). An enemy Rampart is also not walkable. Also you can simplify it as item => item.terrain !== 'wall' && !isObstacle[item.structureType], if item is not a terrain, the corresponding property will be undefined which is not equal to 'wall' -- this was incorrect

Honestly it feels like increasing the game complexity for edge cases. The only cases I can think of that use this mechanic are boosting MOVE parts for creeps that travel to a single destination and boosting CARRY parts for one-way trucks. Can you provide some more examples?

Built-in creep names look pretty and move together with creep after each tick. It would be cool if a user could create visuals that exhibit the exact same behavior.

A lot of user made visuals are related to creeps (role, state, cpu usage, Traveler style fatigue and stuck circles) and will look much better if they could move together with the creep. Just make it possible to anchor any visual to a creep (with offset).