A (meta) answer was deleted by a moderator. When I view it on desktop, it merely appears to be deleted, but when I view it on mobile the content of the answer is hidden with a text saying
This answer was marked as spam or offensive and is therefore not shown - you can see the revision history for details.
If you don't have a mobile phone but have more than 10k reputation, you can click on "mobile" at the bottom of the page to switch to the mobile site to test it out.
Considering the content of the answer, this isn't surprising that some people flagged it as offensive, which I guess triggered the behavior. But 1/ shouldn't the mod deletion have overridden that and 2/ why is the behavior different on desktop and mobile?