Not at all, Anon. I have several ancestors that have designations and stickers for their service in the Confederate army in their profiles. It has never been discouraged on WikiTree. We don’t make judgments in this area. So, what you have done is jumped the gun and made assumptions that because the subject of this query was about Union service, recognition of Confederate service is discouraged.
Better to get all the facts before asking rhetorical questions about WikiTree. We are here for genealogy, not politico-social commentary.