Personally I dont think it is a good idea. It may not increase your risk at all, but if Blizz uses Analytics to find botters (and I think they do) then identifying a bunch of Legs at once would be a red flag IMO. Normal people ident as soon as they can incase it is an upgrade. Obviously the servers already keep track of such information, as seen by the guild notification tab (N = Hotkey). If I was looking for botters that would be one of the things I checked. If I saw someone who was consistently identifying 5+ legs at a time then I would flag the account for further investigation.
Granted that is ENTIRELY conjecture. Doing so may pose no further risk to your account than normal botting. And one can argue that normal players may save up their legs for personal reasons... The joy of spamming guild chat, to lessen the chances of not finding a single good item, etc. The question becomes is it worth the possibility of that risk?