more weapons the same level as you are when you identify and trade system pls

While that wouldn't be bad, I do agree with the game's methodology of having most of the weapons be focused around the level range of the dungeon.
So, if you are getting weapons too low of a level for you go find a harder dungeon, if there are no harder dungeons, congrats you have beaten the current game.
Though if you are getting weapons a higher level than you, go find an easier dungeon.
In my opinion that is how it should be. Though I wouldn't mind DIFFERENT weapon drops in between normal, hard, and hell. (not just different chances of bronze, silver, and gold.)