Multiverse clarifications

The undertale multiverse can be very confusing. Especially for new people coming in. I have come up with some ideas for how to organize the multiverse. 
Rule 1- No AU can exist before the original undertale. The original undertale is the first.
Rule 2- The original undertale is untouchable. The versions of the original characters that we see in fan works are just alternate timelines.
Rule 3- Alternate timelines do not have their own alternate timelines. For example, fatal error is not an alternate timeline of Geno. Alternate timelines can be simple variations meaning one timeline can be very similar.
Rule 4- There should be no rulers of the multiverse. There is no jurisdiction. Those who claim to have control have control of some other multiverse.
I believe that if we follow these rules, the multiverse will be easier for new people to come in.