In 2011 and 2012 there were discussions on Meta about ensuring that titles were grammatically correct questions.
I seem to remember there was a campaign to edit new questions to ensure that:
A good title is formulated as a question, is grammatically correct, uses consistent capitalization, occupies one line or less, and clearly indicates the main point.
Recently I have noticed a lot of titles being edited from a clear question to be a noun phrase, gerund or statement. For (a made up) example, "How do I add a layer to QGIS?" becomes "Adding a layer to QGIS". There seem to be many edits like this recently.
This can lead to ambiguity. Is the question now about how to add a layer, is there a problem with adding layers, or is someone proudly describing how they added a layer? In particular there are cases where "how do I ..." is needed to distinguish it from "Why can I not ..." - the former a normal usage query, the second often dealing with a bug or misunderstood feature.
In some cases it is perfectly clear what the question is about and the edits lead to brief, keyword-style titles that are more readable (or at least shorter). However, it contradicts what the community discussed some years ago and put effort into. Is my concern about 'proper questions' now old-fashioned, or out of fashion, or somehow not correct anymore?
Some examples (not trying to call out any particular edits, there are a lot of these and I grabbed some easy-to-find ones):