Valve no longer applies bans tokens since halloween 3 years ago, in any case use at your own risk.
Nobody here will tell you to use or not, plugin is there, token site too. If you are really behind on using your own steam account to create the tokens your way out would be to buy tokens anyway.
And no, it's not your IP that gets banned, it's your server token. The token has been banned, only to exchange and it will do so if you want to leave your server online. (Of course if Valve starts banning tokens again)
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