If you remove this user, you won't be able to create another user or channel with <strong><x id="PH" equiv-text="user.username"/></strong> username!
The <x id="START_LINK" ctype="x-a" equiv-text="<a routerLink="/about/peertube" fragment="privacy" target="_blank">"/>sharing system<x id="CLOSE_LINK" ctype="x-a" equiv-text="</a>"/> implies that some technical information about your system (such as a public IP address) can be sent to other peers, but greatly helps to reduce server load.
The <x id="START_LINK" ctype="x-a" equiv-text="<a class="link-orange" routerLink="/about/peertube" fragment="privacy" target="_blank">"/>sharing system<x id="CLOSE_LINK" ctype="x-a" equiv-text="</a>"/> implies that some technical information about your system (such as a public IP address) can be sent to other peers, but greatly helps to reduce server load.