I will give you $1000 of my own money if you come out with a Wikipedia clone or fork that works better than the current version, particularly with regards to the issues you have difficulty with. Or even a prototype!
I don't have this kind of money to throw around, mostly because I work for Wikimedia. ;) But I'm pretty confident I won't have to pay it out. You aren't going to do shit one way or another. You talk big about how you could do it better. But I see you backing off when I am begging you to actually do something about it.
Only caveat, it's gotta be 100% open source (GPL compatible license) so I can copy its features back into Wikipedia if they seem to be working, or are generally good ideas. If you like we can find a mutually respected person to arbitrate on whether your version is better or not.