I have been thinking about a platform where people could list their problems. Like an outlet to rant about things. Perhaps combining a ranting platform with access to early solutions to a particular problem could solve the above dilemma.
In a way Producthunt and Indiehacker is this community, but they tend to be very tech orientated. So it is not picking up on the every day problems.
I liked what Earn.com did at some point where you could join a list to partake in paid surveys. Initially they were quite strict about who are approved for a list which obviously made the results more valuable.
Have you tried to test interest for people joining such a platform as beta testers?