What the hell? Just received this:

We've been alerted to activity on your account(s) that is considered a violation of our rules on vote manipulation.

https://reddit.com/r/unitedkingdom/comments/e6wwpo/c/f9tlqtc

Reddit is a platform that enables users to decide what content is popular on the site. Using multiple accounts, forming groups, or asking your friends and others to vote on specific content undermines the integrity of the voting system, and by extension, the site.

Please familiarize yourself with Reddit’s Content Policy, especially our policy against vote manipulation, to make sure you understand the rules for participating on Reddit.

This is an automated message; responses will not be received by Reddit admins.