Question about the page SteamTrades

You don't have to worry about anything more than be scammed if you don't have experience with trading.

Also you never have to click on suspicious links on the chat, that's all. Only for precaution you should have 2FA enabled on your Steam account (Steam guard).

It sounds like a phishing scam. It's possible that someone setup a site that looks like Steamtrades, but it's not. Phishing sites are fake sites that look like another site and people will enter their information thinking they are logging into the correct site.

bookmark the real steamcommunity and steam store pages, or manually visit them each time.
Always log in only on those. After that every Steam-linked login system should work. If it still shows you logged out, and asks you for a login, it's a fake site.

Also, the usual warning about impersonators who are around all the places, not just ST

Yeah. That's not a thing. Just don't click on random links or trade via Discord. Always make sure your trading partner's Steam account matches since there are a lot of imposters. And since you're new to trading, consider using barter.vg as well. It's safer for new traders. Final tip: never make a trade you aren't comfortable with. A lot of established traders are essentially bullies.

It's a lot safer and easier to just host giveaways here. ;)

Thank you all for your answers, I will always keep them in mind. Thank you so much.