Beyond having thousands of clones running around, I still haven't read why a full IPR would damage the play of those of you who are arguing against it.
Fine, there will be clones: This affects you how?
Fine, people can switch from smg to pistol on a whim: This affects you how?
Change from str/stam armor to agi/sense, take ip from runspeed and put it into psycology, decrease a nano skill to increase one for a new nano line? How does this affect YOU.
I personally do not forsee needing one for my mains remaining 75 levels. But if player xxxx uses a full ipr, I just don't see how it will affect me and my game playing.
How many people came to this game, or created what is now their main, after the previous IPR? A lot I'm sure. What I can see that may be a reason, for a high level player that has been around a while, not to want a full IPR, is that you had an opportunity to maximize your character with the first IPR. Now you feel uber and are doing great in PvP. You used the IPR to make changes to your character that you learned would be usefull after 100+ levels. Now, when someone talks about IPR, the idea maybe even scares you. All those players who are now at the point where you used your IPR, don't have that option. And they are unable to do what you could do.
Personally, the only changes in the system we have now, would have been to not have a timer on the original IPR, being able to use it at anytime over your 200 levels, and to add a way to gain ipr points through a quest. Maybe something that can only be done once every few months or something.
Anyway, to summarize, the only people that a full IPR would actually HARM, are those that used the original full IPR to maximize their character, and are afraid of others having the same option now.