I think we should NOT focus on 32bit. Almost everyone in the world have 64bit PCs. Even the Industrialized countries send-give 3rd world users old 64bit PCs. ... Free for the taking via many Aid Agencies.
We, members, know that the Linux world has moved onto 64bit with companies and groups focusing their talents on improvements centered around 64bit technologies. Heck, today, there are a 100000-fold more 64PCs than any other 32bit or 16bit PC...even though I have some of each still in my basement awaiting some opportunity to give them away. Consumer 64bit PC is over 20 YEARS OLD while 32bit PC, in their hay day was only available, cheaply, for 8 years. And if my guess is correct, it will remain this way for a very long time into the future until the next quantum technology becomes consumer available ... if ever.
The only reason today's users would even consider running a 32bit distro on a 64bit PC is the expectation that there will be a lower RAM demand. Performance, whether 64bit or 32bit OS operations is the same on 64bit hardware.
This post is not intended to discourage anyone, but, is to offer an idea which 'might' be appreciative to a broader group of users; new or old.
Offer: How about a topic area labeled "For low powered PCs"
This will cover the desires of those looking for 32bit distros that continue to be maintained by their developers as well as for user whose PCs have little RAM of less than 2GB no matter if its a old or newer PC.
Just offering an idea to accompany the OP's post.