Basic questions about trades on Stramtrades

1. no

2. depends what you're trying to accomplish - there aren't many equal trades as games, demand, bundled xx-times differ > for good pricing check https://g2a.com as its a good mirror for "grey market" steam prices if that is no good relate to obvious info such as ratings and people who'd want a certain game if there's none > https://steamdb.info/app/345350/graphs/ and always the lowest price of a game during sale https://steamdb.info/app/345350/ - great add-on to save time looking that up > http://www.enhancedsteam.com/

3. you can not - but the more "authentic" rep the less likely its "risky", trading keys is based on trust and the keys are best tested at once unless you know the trader and even then ... humble gift links are another thing though

4. either you take the plunge with someone who has considerably more rep (low - very low risk) or you engage in some low risk trades to gain rep - or your trade offer is good enough that someone else will (reluctantly maybe, but you insist on it beforehand * in your offer)

5. steam trading commodity + value when btfo'd for opening boxes - basically gambling for minors (csgo)

6. game will take "forever" or a while until someone will offer something worth trading want it, but it doesn't mean it has no value ...

• don't get scammed by people adding you at random claiming to be someone their not -
  if their steamgift/trade profile doesn't link back to their steam account their trying to screw you
  (the add-on mentioned above also adds links to users steamgifts/steamtrades & steamrep profiles)

• in a nutshell - steam games are never more worth than their lowest regular sale price (when you're buying at least)

• also steamgifts are valued more because their safer and valve is a big enough bumhole not letting you turn keys into gifts or hell, let alone check if keys aren't used (as 1 account owning them and trying to use them will only display the name of the game - but not if its been used or not)

rocket league is a bit more worth than FF 13 LR ... in demand higher too, but chances are good you get it by trading sometime
by someone who doesn't care you're offering a key and they likely a gift (been a while since RL was bundled)

Just a short one since you got answered pretty much on everything.

the BASE game price has literally nothing to do with the Actual value of the game in a trade .

A game can be worth 50$ on steam , but to be part of the 1$ Tier in a bundle .

I suggest checking historical lowest price for the game , was it in a bundle ... and if it was when was it / when was the lowest price recored .

And what was the most recent lowest price for the game .

Little example ... lets say if Bad Rats was a 50$ game part of the 1$ tier on humble bundle along with 2 other games ...
The most you can ask for it is 50ish cent if that bundle was really recent .
No one will look @ the base price and say hey bad rats is 50$ ,.here have my witcher 3 For it which is 40 ,,, ( with 20$ historycal lowest )

It takes some time , but basically you gotta do some reasearch for stuff , and keep in mind that almost everyone tries to resell stuff for profit :)