Hello everyone 
Messages that say free CSGO skins / free nitro are attempts to steal your steam/Discord account, DO NOT CLICK OR SCAN QR CODES
I assume some of you noticed but we have been getting a lot of spam with users claiming they are no longer playing CSGO and therefore they are giving all their inventory away ; same for users claiming to give away nitro. DO NOT CLICK THOSE LINKS
Anything that says free nitro is a scam or is a way to hijack your account. If you see a QR Code, DO NOT SCAN IT. In summary, do not interact with messages that claim to give away something for free.
We've also noticed those kinds of messages have increased and regular users are being hacked, so we end up having to kick/ban in order to prevent other users to click on suspicious links.
In order to prevent your account getting hacked, we recommend that you enable 2-factor authentication or as your may know it, 2FA. To enable it you only need to have a mobile and a working phone number. You can read more on it at https://support.discord.com/hc/en-us/articles/219576828-Setting-up-Two-Factor-Authentication. You can also follow the instructions on that website to make sure that your account is protected and away from malicious people.
In addition to that, if you see those types of messages make sure to ping us <@&314495867123924992> so that we can take action.
Note: Once you have set up 2FA, you will be given backup codes in case you lose your phone or no longer have the same phone number. I suggest you keep those OUTSIDE of your phone. Write them up somewhere or send them to yourself in an email for example. It is crucial you do not lose them otherwise you will not be able to recover your account (if you lose your phone of course).
If you're reading this make sure to warn your friends and be safe ! Thank you ! 
TLDR : Do not click on suspicious links/scan qr codes and make sure to read this if you don't want to risk your account being hacked https://support.discord.com/hc/en-us/articles/219576828-Setting-up-Two-Factor-Authentication.