Is it really raping Inscription for a quest giver to reward a player with three glyphs which are all weaker than their inscription-sourced counterparts?Really!?! Because they haven't raped Inscription enough already? For that guy crying what's next. Is he going to come onto the forums and say "hey, you know blue boes are really expensive at level 19, I think you should give out a good set".
Example: a young lvl 25 Arms warrior is given a glyph by the quest giver; Lesser Sweeping Strikes, reduces the rage cost of Sweeping Strikes by 25 or 50% (as opposed to the full glyph which reduces by 100%).
No player at level cap is going to keep the weaker one and not take the 100%, however it does allow new players to get some glyphs without spending the money they might be saving to get flying or something.