I do take pride in my work, and every piece of software I write handles every use case
I need it for explicitly. I take offense that you would imply otherwise knowing absolutely nothing of me and my craft. This isn't about UTF-8, it's about an illogical premise where some very shortsighted individuals would rather have only fully fleshed, fully baked products in open source. This is highly illogical, and would bury ideas potentially unexposed for others to coach and assist with. You aren't the judge of what others find difficult, but that doesn't mean that those that struggle with a concept cannot add tremendous value in other areas.
By the way, it's not utf-8, it's UTF-8. Whatever happened to taking pride in your writing and making it the best it can be?
Everyone has their own criteria for quality, and you can't hope to satisfy everyone. Everyone with even a mildly successful project in open source knows this. Scratch your own itch, make it work, accept any request that meets with your vision, and keep a permissive licence so those that don't can fork. Otherwise, the arrogance being asserted, that you can somehow determine if my contribution is worth of existing, is baffling.