Problem: Most English Wikipedia administrators live in developed countries; as a consequence, the blocking practices that have evolved are ones that work well for the internet infrastructure of developed countries, but much less so for developing countries. Specifically: 1) by the time the internet became mainstream in many developing countries, most IPv4 addresses have been reserved by richer countries, so in these countries it's common that many internet users have to share the same IP address (cgNAT), so blocks cause large-scale collaborative damage. 2) Wikipedia users in oppressive countries often need to use IP hiding services (Tor, open proxies, VPN etc) to remain safe, but these services share the same IP addresses between their users and can be weaponized by vandals, which means they tend to be blocked preemptively.
The same can be said about mobile users as well to some extent: patterns of IP reuse are increasingly more common (see e.g. iCloud and T-Mobile), but because mobile use among developed-country power users and admins is low, the blocking practices that emerged are disruptive for mobile users.
Proposed solution: I think we are still in an exploratory phase with this problem, plus many potential solutions are too large for the wishlist, so it's best to leave to Community Tech to identify things they can do.
Who would benefit: Users who are forced to use proxies for their safety, users in less privileged countries who only have access to ISPs with proxy-like behavior, possibly mobile users.
