1. The "Offer Me"
This trader will make an advertisement and not state the price of their item. When asked how much do you want, they will restate every time "OFFER ME". They do this because they know their b/o is to high.

2. The "Can I Have A Price Check"
This type of trader is most likely new to trading and will ask any one for a price check and when they get that they will then disagree with you that its worth more than it actually is

3.The "Quick Seller"
This irrelevant Trader recently came back to trading from 2016 and is offering 80% for all your items

4. The "NO KATO, NO CASE HARDENDS"
This Trader is usually under 10 years old and has less than 20 keys in their inventory they will explicitly state "No Katos, No Case Hardends" at the end of all their advertisements

5. The "Low Baller"
This trader unlike the quickseller knows that they are paying low so pay a little more than the quick sellers but still under what a bot offers

6. The "Rich Kids"
Not even a trader and will constantly call kids poor and peasants. They probably scammed for their items in the past

7. The "Redditter"
Will decline your offer of 90% because "Reddit Offers More"

8. The "Wanna Be Admin"
Won't trade and will tell everyone "KEEP CHAT TO ADVERTISEMENTS ONLY"

9. The "Kato Trader"
This trader will probably have depression and the little offer they get will get them advertising every 2 seconds

10. The "White Girl"
This trader will come on the server exclusively to interrupt advertisements and tell everyone their life story

This List only consists of the most common types of trader I see on a daily basis so there are going to be some I missed and some I left out of this list.