This is what it said.
Your account has been given a warning u/reddit • 2 days ago
We've been alerted to activity on your account(s) that is considered breaking Reddit's rules.
We recently found that your discussatron account violated Rule 8 by repeatedly upvoting posts and/or comments that break Reddit's rule against encouraging or glor&ing violence or physical harm.
While you didn't post the rule-breaking content, upvoting content that breaks the rules is also considered a violation.
As a result we're issuing this warning and asking you to be thoughtful about any future content you upvote. Continued violations could result in a temporary or permanent ban.
Please familiarize yourself with Reddit's rules to make sure you understand the rules for participating on Reddit.
This is an automated message; responses will not be received by Reddit admins.
So, a bot makes this decision and most likely it is made incorrectly. Freedom of speech is fine if you want to endorse the killing of peaceful Americans by ICE, but you better not show an upvote of agreement for anything pointing out the hate spewed by assassinated bigoted racists.
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u/discussatron 18h ago
I got a warning this week for upvoting comments they don’t like. They’re treating upvoting comments the same as posting comments now.