Inconsistent update comments
Why is there such a mixture of application update comments per app? If I ever notice that one or more apps have updates and I click into it to find out what might've changed, it is a mixed bag. Some are really good and state a decent changelog or are just clear about the changes. The vast majority just say "bug fixes and improvements" with no data to explain what they mean. The worst ones try to turn this field into a "witty" comment around puns for their app or that they've squished bugs and polished stuff etc or the same generic message spans several updates.
At least with open source apps, they're far more up front about changes.