The observation that an empty category actively signals interest isn't welcome is what convinces me over a compromise: rather than debate whether demand exists, a single pinned thread simply tests it. I'd add one practical detail to what's been said — the thread would work better if it asks something specific, like whether people would discuss CS2 casually or only play organized matches, since vague interest can be hard to read. If the replies arrive lopsided toward one or the other, that also shapes what kind of section, if any, makes sense later.