On the last point, if you lead the team then you can point out that it is part of their job, as executed professionally, to "write descriptive ticket comments"

On the last point, if you lead the team then you can point out that it is part of their job, as executed professionally, to "write descriptive ticket comments" and otherwise help themselves and colleagues get the job done. It's not a matter of opinion or taste if you set the rules... Remember that your being loved is less important than being effective. Note, however, that reluctance may be embarrassment or lack of self confidence in writing. I have worked with some remarkably good tech people who would do anything to wriggle out of writing comments ... because they thought themselves bad at it. Maybe point out perfection isn't the issue, capturing the information that someone else can understand (grammar Nazis notwithstanding) is...