Again, use common sense and you should be fine.
No one will give you a hard boundary you can quote to defend your trade not being a troll trade / shark attempt.

You should get a consultant job, after a fine brain reconstruction.

At the moment you cant deal with numbers, let alone a range.

We basically use our own judgement, a trade is closed if we believe it will never happen.

On some normal (mid) early craft items, i like to ask 200% tf value, is that good?

Probably, just ask yourself if the trade may happen, with a person who is appropriately informed. I personally believe that a craft number 101 hat is worth as much as a hat with a five digit craft number, as they don't appear in game.

i meant craft 40-60 or 35-70. Would 200 % be good for any of these, or even earlier ones?

Whatever you consider apt is fine. I personally and many of the staff generally ignore, and as a rule don't bother with price guide like backpack.tf, perhaps only using them to see if an item is of unusually high value.

Price it at what you think is fair, just don't go doing ridiculous things like offering to buy craft hats for 2 rec each, or selling keys for 7 ref or something like that.

Originally posted by Rico Lambrini:

You should get a consultant job, after a fine brain reconstruction.

lol, I'm not the one that got banned for not using his brain.

thats past. I was lazy 2 days ago, but your condition is permanent. Seek a surgeon earlier, the better for you.

Originally posted by Rico Lambrini:

thats past. I was lazy 2 days ago, but your condition is permanent. Seek a surgeon earlier, the better for you.

No, your actions were just plain stupid and judging from your childish comments I doubt your condition has changed.