what are the pros and cons of something
This would most likely be closed as not constructive, since it's essentially polling the community for a list of things, which doesn't really solve a real problem. It's also difficult to vote up the best information to the top. Having a lot of specific details can sometimes mitigate this, but in general, it's best to focus the question on solutions rather than pros/cons.
could you suggest a resource
This could be closed as either not constructive or not a real question. These sorts of questions tend to attract a lot of spam or one-liner answers, and the answers are generally just everyone's favorite X resource instead of something that actually solves a real problem.
where these types of questions should be asked.
In general, lists, polls, and extremely vague questions just don't have a home on the Stack Exchange network. The goal of these sites is to serve as a resource to future visitors, and the reason why Stack Overflow is so successful is because we can search for problems in Google, click on a Stack Overflow link, and quickly determine if the information solves our problem or not. There's no noise to sort through to find the true answer.
You've asked a lot of questions on Stack Overflow, almost 300! Only 6 are visibly closed, either as not constructive or off topic. You don't seem to have a problem adding details in your posts, and that's a good thing.
Questions that are closed as not a real question tend to be lazily written or lack significant detail that would lead to real solutions. These questions can be fixed, if you as a user are patient with the asker and leave comments asking follow up questions. As the author of a question, you can fix your post by adding in the information asked of you in the comments, which would improve the post significantly.
In general, the best questions tend to take into account that thousands of people may search for the same, or similar problem, and the material should benefit these users as well. Hope this helps!