How is it possible that the comment in this community document has an upvote?
Upvoting is otherwise unavailable in document comments.
Was that comment merged in from some other post? Is the carried-over upvote indicative of a bug?
The comment is in the spam bin
Thanks for catching and moving those two responses left by the spam account, @DanPatterson. We've taken action on the account to prevent additional spam content from being shared.
@Bud, at this stage I don't believe what you're seeing is indicative of a bug.
There's a limited crumb trail I can follow on this one, but the most likely scenario is in line with your merging theory: that the comment you're referencing was published as its own post in a Questions Board (probably ArcGIS Pro Questions) and a member of our larger Esri team identified that it was not actually a question, but feedback related to the new release. It may have been moved to the Document post to preserve it in a more relevant location, but it'd likely already received the Kudos from another member before that transfer took place. Maintaining a record of the Kudos even when a post gets shifted to a Board where new Kudos aren't enabled is likely to be a baked-in platform feature.
If you happen to notice a pattern of messages like this at any point and suspect there may indeed be a bug—especially if it hampers your use of Esri Community—please do mention it again.