I've just had the same experience: last month someone decided it was a good idea to close a question of mine from 2010 because it was "opinion-based", asking me

I've just had the same experience: last month someone decided it was a good idea to close a question of mine from 2010 because it was "opinion-based", asking me to "Update the question so it can be answered with facts and citations. This will help others answer the question". The question, other than being 15 years old, had more than one thousand votes, 15 answers with positive score and a bunch of low quality answers. The question is still up on the site, just nobody can answer on it, but it feels hostile to me (and to the people who took the time to contribute answers) and made to accommodate the wishes of someone who cares about tidying up the place more than anything else.