But it's your whole character leveling that gets you perks, not just one skill. So as stated above, unless the ONLY skill you are going to level is archery, then this theory is flawed. That same woodelf can level SPEECH up , and get those extra perks.
Well I understand him. I will try to break it down for you.
Lets say he is going to use 8 skillsets - to RP a thief. All other skillsets will be ignored and not leveled because he will not say - swing a two hander for some levelups.
I do this myself with skills like block and two hand (leveling up based on those skills is a hollow level)
If he started as a strong "thief skill" race - like a khajit, he would have about "35-40" less skill increases to make before he caps than say a breton would.
To max 100 in his 8 skillsets he would need - lets say 720 skill increases for a breton, and 670 for a khajit (just numbers for the example.)
As a result, that breton would reach a higher level than that khajit. These numbers aren't accurate as I don't have the race menu in front of me, but the point should be clear. Some people will dip into other levels and take skills that don't mesh with their style for levelups, and that is fine, but many don't do that. Skilling up in skills your "character" wouldn't do is grinding to an RP'er.