How is the anti-feature label added to the F-Droid entries for that app? I presume a human has to evaluate whether or not something counts as an anti-feature, and what kind, and manually add the label? If so, could not they not also write a quick comment summarizing why they chose to apply the label? This could then be included in the app description, below the anti-feature label.
In some cases I’m strongly inclined to think the labels are inaccurate. For example, the entry for SchildiChat claims that;
"This app promotes or depends entirely on a non-free network service
It’s a matrix app. What’s the non-free network service it supposedly promotes or depends on? There’s no easy way to find out.