Anecdotally, a community college professor in my area (who holds a PhD) was fired because his classes were "too interactive", and he allowed students to "ask too many questions". To me, it sounds like he was doing his job: Helping the students learn.
This reminds me of one of the best teachers I ever had in high school. My finance teacher had one policy with his students; if you ask a question, he will answer it to the best of his abilities. He barely planned anything for each day - just a quick run through of some finance topic. Honestly, each topic would probably take no more than 20-30 minutes. However, since he answered every, and I mean every, question he was asked, that topic would form the basis of a conversation with our teacher that was fun, laid back, and extremely educational. We probably had 4 tests in that class, and almost no gradable work, yet I feel I learned more in that class (that was considered to be a "blowoff") than I learned in my very work heavy psychology class. I hear the administration is cracking down on him - he needs to produce "results". I always thought his results were knowledgeable students. Now I know better.