Pinephone IMEI changing info: do you think its OK for a Wiki?

[bcnaz]

How can you be certain you are not changing your IMEI to someone elses IMEI number when you change yours  ?
AND
Using someone else's IMEI number is definitely illegal !

I don't think the act of changing your IMEI number would be illegal in most places,  but the final results of doing it could be. 

If there was a clearing house that issued individual IMEI numbers it could work,  but then the issue of privacy returns  ?

Also :  How the carrier's equipment see's and handles your call may depend on the correct modem manufacturers identification.