I've seen a few questions in the close review queues, as well as just by browsing around the site. There's been a rise in close votes: as Primarily Opinion-Based. Here are some examples:
- Is it general knowledge that open source is different from freeware? (4 Close Votes)
- Is harassment a major issue in open source development? [on hold] (Closed as opinion based)
I, for one don't feel that these are opinion-based. Many points outlined in the questions are easily answerable with research, and studies. I also want to make a point that the close reason outlines something:
Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise.
Which means that these sorts of questions would need to be primarily based on opinions, and it would be difficult in raising facts to support answers.
While I may be wrong, it's an interesting thing that I wanted to bring up here on meta. I'm also curious to see the extended thoughts of those who closed, as well as the thoughts of the community at large.