I think reddit is more suitable for specific topics. Stackoverflow has the issue that you simply cannot send an open ended question because it is "opinion-based

I think reddit is more suitable for specific topics. Stackoverflow has the issue that you simply cannot send an open ended question because it is "opinion-based", however most questions I encounter in work, once I get over the basic language stuff, are open ended questions. For example: - Given these constraints, how would you design you system? - Can you please give a few examples of previous work done on topic X?