Are you allowed to post something non-question related?
924
Give each site a parallel site for polling, recommendations and subjective-ish stuff
147553
Should unregistered users be prevented from posting questions on Stack Overflow?
147191
Can I ask questions about asking questions?
56371
Are "beginner questions" allowed on Stack Overflow?
142087
Should I flag answers which contain only a link as "not an answer"?
33204
What should I do if a user posts sensitive information as part of a question or answer?
85905
Clarification for non-answers
90406
Is it OK to add [Solved] to the title of a question?
20138
Allow cross-posting of questions to more than one SO site
71551
Is it OK to cross-post an old, unanswered question?
59439
Should Meta allow anonymous questions?
110470
Why appropriate comment is not compulsory when someone down vote any question or answer?
35480
Flag a question as being off-topic and belonging on another SE site (which is not in the suggested list)
49038
Are questionnaires permitted on Stack Exchange sites?
109436
Why can I flag my own question/answer?
37700
How can I ask for clarification on a question I'd like to answer if I can't add comments?
27040
Is posting someone's comment as an answer okay?