I’ve compiled a list of every scammer that I’ve encountered since I began trading, feel free to report any of these accounts. Note that some of these accounts have already been banned, I have put a brief description of the methods they used next to their name. A “scammer” refers to someone who would do something like convincing me to trade with a steam “admin” to verify that my items are “legit”.

http://steamproxy.net/profiles/76561198290234414/ Uses fake gambling site scam (Steamrep banned)
http://steamproxy.net/profiles/76561198160192835/ Uses "Verfication" (Trade banned)
http://steamproxy.net/id/4NAD Uses a case opening site/gambling
http://steamproxy.net/profiles/76561198117050214/ OPSkins scam, privates after trying (Banned)
http://steamproxy.net/id/buma123 gambling site scammer (Steam rep ban)
http://steamproxy.net/profiles/76561197962998622 Gambling scam (Steam rep Banned)
https://steamproxy.net/profiles/76561198821026685 Paypal scam attempt
https://steamproxy.net/profiles/76561198322117989 Opskins scam
https://steamproxy.net/profiles/76561198050751360 Fake gambling site
https://steamproxy.net/profiles/76561198086510955 Tried to trust trade with middleman
https://steamproxy.net/profiles/76561198158787255 Phishing link
https://steamproxy.net/profiles/76561198038498111 Paypal scam
https://steamproxy.net/profiles/76561198194314507 ^his second account
https://steamproxy.net/profiles/76561198170839298 fake paypal email
https://steamproxy.net/profiles/76561198096561602 Opskins scam, blocked me after attempting
https://steamproxy.net/profiles/76561198090354946 Fake giveaway scam
https://steamproxy.net/profiles/76561198137225325 Paypal scam
https://steamproxy.net/profiles/76561198213831135 Middleman scam
https://steamproxy.net/profiles/76561198875213017 scammer
https://steamproxy.net/profiles/76561198081213615 Paypal scam
https://steamproxy.net/profiles/76561198872654861 Fake giveaway
https://steamproxy.net/profiles/76561198279414856 Fake Case opening site
https://steamproxy.net/profiles/76561198089581344 Phishing link to porn site LOL
https://steamproxy.net/profiles/76561198017340790 Middleman steam admin scam
https://steamproxy.net/id/eddie28492384 Fake steam moderator
https://steamproxy.net/profiles/76561198396839814 Fake steam admin

To be continued...