Probably a controversial suggestion, but I've noticed there are a >lot< of locked threads in places such as general discussion, often for reasons of redirecting to other older threads of similar topics of discussion or being locked for not having a clear point of discussion. And I just have to say - is it necessary? Maybe this new thread has a similar topic of discussion to some random fanclub or other, but the specific, concentrated topic people are discussing is a topic within its own vein. It just feels more organic if you want to talk specifically about one aspect or thing that happened. A lot of the threads people get redirected to (e.g. comfort corner, weather today thread) are more the kind where people just post and leave - as in, there is rarely quoted conversation or ongoing threads of discussion because just so many people come in to post their thoughts it becomes more like the twitter feed as a whole rather than a string of replies between individuals. More individual threads encourage these more direct conversations between multiple people.
As for the rule of having no clear point of discussion - the only reason I see to close these kinds of threads if it's quite literally just spam with no discernable words. Overall, I don't see the harm in younger people on the site or even just people in general looking for some extra interaction just posting a thread with a bit of a vague thread of discussion, as long as they're having fun and being respectful to all parties involved.
In my opinion, the only reason threads should be closed is if it's straight-up a fanclub that there already is an active version of, or if it's about a more uncomfortable topic that might be inappropriate for the site. I don't see why excess threads on the site would be an issue, as the CS as a whole has been getting more inactive over the years and I can't see it suddenly lagging from a increase in thread activity (if say the rules were changed). But if that is a issue, my apologies - I'm running off of the assumption it wouldn't be a technical issue.
Anyways, I understand this probably won't go anywhere, but I thought it important to get my thoughts out there. I'd love to see the CS forums be a little more lively. :-) Sorry if this has already been suggested as well - I didn't use the search function besides a quick glance at declined suggestions.