So far it has been totally allowed and even I would have to say promoted.
At least the question with the second highest votes (17) so far has a top answer with 9 votes. That top answer is findable as the second result on a google search for "windows unlock file software". (Also for that matter quite a few other potentially very workable solutions)
However there are a few difference between the Google search results and the answer here:
- Here is unbiased user answers hopefully with a fair bit of experience behind the answer. (At least it should be and any case where there are biased answers people should certainly specify that they are biased)
- Often here will have a simple (or full on in some cases so far) how to do X that the user wants to do with that software.
So basically I see this as more a site dedicated to software comparison and unbiased used derived recommendations. So to continue with my example above, yes there are a dozen different "file unlocker" programs available but other places don't (with a quick look) mention the adware (which for non-IT users can be good - i.e. I have had to deal with users installing the adware from those things), and a quick how I use it/often I have to do X instead of Y because Z.
In Summary: Unless it is a Google search with only one answer I see no problem with Google-able questions.