No, it's useless.
The purpose of this feature is to notify any allied hero that they are in danger because I see too many beginners don't have a sense that they are being ganked while they are farming, etc. Or maybe they are just too focused on trying to last hit creeps.
This feature is similar to the ping for defending towers.
When I ping my allied hero, the message could be something like this,
"Careful <hero/username>! You might be in danger."
Yup. Also, if the player is distracted, a BIG red light above him is sure to catch it's attention. Put a poll to vote.
Thanks for the support guys, I will create a poll asap. I really hope this idea gets implemented asap as well.
In terms of purpose, the point is to alert beginners or unaware allied hero that they are potentially in danger.
In terms of visuals, a pinged allied hero is the same as if you pinged an enemy hero. Except maybe the color should be blue on the pinged allied hero. The mechanics and the way you ping is exactly the same as if you ping a tower/enemy, so minimal implementation is required. (I hope)
i dont know about the message, i think putting something on their screen to get their attention is good.
I know when the clicking on enemy heroes first came out poeple would say "omg, you told me to attack them" when infact someone just clicked on them to show they were there. Solid concept though.
Reverse Pick Game Mode:
Slippers of retreat: http://forums.heroesofnewerth.com/showthread.php?t=402103
Language flags : http://forums.heroesofnewerth.com/showthread.php?t=402084
I like this, I've always been a bit disappointed that you couldn't ping allies in the first place. Definitely approve.
Thumb UP from me.. Very good and usefull idea.. And there should be green glow around the hero that follows him and warns to go back..