Mastodon seems to be in a weird middle that a lot of community platforms fall into. There are a lot of memes (way too many honestly) but they are political memes. I would imagine this is because a lot of people are genuinely worried about their future, but do not want to risk their life nor come off as "cringe".
This is not surprising, given that we are living in extraordinary times, but it is frustrating. I would like for intelligent and practical people to come together and talk about solutions - but we've generally been reactionary. You want good and spicy meem - but we've generally be reactionary. Like I said, its frustrating.
I am going to assume you are disgruntled, and answering in good faith.
Perceived issues are the point. People do not necessarily have to comment on said issues if they are not affected or interested. This is not to say things cannot get off the rails, but this is what community culture and mods are for. Do not forget science only exists because practical people perceived issues.
Picking a hypothesis is the point. People will be discussing why the problem is occurring. There ideally would be scientific evidence or real strong correlating factors on why a problem is occurring. It is the communities job to downvote abysmal hypothesis. I would like to point out this is exactly how academia of all types function.
Once there is a hypothesis (or hypotheses) that people agree on (filtered by upvotes/downvotes) the community will discuss potential solutions to the problem.
This type of community requires some maintenance to work, but that's why I am asking if it exists.