Is LOL boosting illegal?

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In China, paying others to play games for you is big business. Tencent is not amused · TechNode

Everything You Need To Know About LoL Boosting

Is LOL boosting illegal?

Everything You Need To Know About LoL Boosting

I got banned for 90 days yesterday due to boosting? Ive had 2 profiles, one Ironman Coop and a Normal Coop. The Normal One is still there and Skycript says i still

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Boosting: Rank and skill deception in esports - ScienceDirect