Allows named party to automatically begin moving, and stop moving when you do, rather than only after you've left the room.
That is all.
Besides. What's wrong with making it easier to RP on the *go*?
There should be nothing wrong with allowing a character whom you want to follow to begin moving in the direction that you are as you do it. If your character is -still- faster (which I seriously doubt is the case based on experiences), then they will eventually leave them behind anyway.
I do understand, nut I'm with Xenode. It's already happening. I remember the person keeps up and walks into the room immediately after I do, unless IC reason. Or I follow right with them almost instantly unless IC reasons now.
It's a way to make your character "go" more slowly.
Yes, I do recognize the pitfalls of this, if you expect troubles from OTHER people. Or even of you don't expect it (what you don't know...). Or even of the one you trust turns out to betray you. Ha. But to me this is a feature - you're using a coded option to provide a small benefit to a character you trust, and that trust creates a potential vulnerability.
Anyway, just an option, using currently available features.
So the holdback option doesn't even have to be that much of a vulnerability, as long as you aren't doing something stupid like walking away from your game while you wait for your character and their follower run a long "go" sequence.
It's possible it could impact fatigue and recovery rate *while* holding back, but not after.
At least I think so.
And with regard to health, there's only so low it could go (not very low), if your character is even one who *could* experience this effect. Again, trust can (and should) yield vulnerabilities, from minor on up. All of the coded @trusts do. This achieves the exact same thing, without putting any MOO development effort into a new @trust and new movement code.
Or so the helpfile makes it seem. 'help holdback' or 'help @holdback' it's one of those two.