You or any other contributor face criticism or disdain related to the wiki, open or rumored.
A key individual keeps blaming or ignoring the wiki. They may eventually complain about “lack of transparency” in a group email or publicly in a meeting.
Do not try to address the issue personally with the particular individual unless they show some willingness to learn or change their opinion. Instead, avoid confrontation until they eventually make a public remark. This is your chance to politely - and publicly - send a “Reply to all” email with a hyperlink to the wiki explaining that the required information is…just a click away.
The reply is worth even more if issued collectively or by someone other than the WikiChampion