If you are a newbie here or even 1 more 2 years old but newbie in trading in this forum, it's very important for you to justify the feedback before you go upfront.

I will share some forms of positive feedback which doesn't mean that you can go upfront.

- The person is very helpful.
- The person is very knowledgeable.
- Purchased something, he went upfront. Good communication.

etc.

Now, going straight to an user's positive feedback-
User- Zerbis

3 positive feedback-
- Paid upfront for items won at auction. Great communication throughout. Thank you!
- This member won a couple physical coins from me and paid right away, smooth transaction and great communication. Thanks
- won my auction, paid directly. Smooth transaction. Thanks

This positive feedback doesn't mean Zerbis is trusted and you can go upfront, from this feedback, it's understandable that feedback provider risked much, in fact, nothing at all.

Depending on this feedback, BitSat19 had sent 0.03 BTC upfront for a deal and Zerbis didn't pay yet. In fact, no communication after that.
Here is the scam accusation- https://bitcointalk.org/index.php?topic=5200663.0

So, if you are going to do any trade here-
- Don't rely on the feedback.
- Always check users post history and if they have any outstanding loan.
- Use Escrow.

I have created this topic here to create awareness among the newbie because newbie are the persons who don't understand the trading system here.