Nitro Vanity needs handled better

the vanity perks for Nitro need to be handled better, esp when coming down from a Nitro subscription to just randomize your id is horrible and shortsighted policy.

First your name##### first assigned at account creation needs to remain permanent, when I come down from Nitro Subscription and my vanity name##### is removed, you need to revert to original, not randomize. User id's changing all over the place is a horrible practice and randomizing them should never have been implemented.

Vanity names need to remain assigned to your account for some period of time,
1 month, 1 month per total months Nitro Boosted or even permanent, you can't use it while not Nitro boosted, but at the same time, someone else can't take it and impersonate you. This could even drive resubbing, every 3 months send an email, Greetings it has been 3 months since you Nitro Boosted, your vanity id's are expiring in 30 days, please Nitro Boost before then to retain your Vanity ID's.

If you are going to stick with account removal of the Vanity ID, you need a public way for people to know the history of the Vanity ID, again to prevent identity theft/impersonation and it needs to be visible when clicking on the profile of a user... [Show Nitro ID History]
JimBob#2211 had JimBob#0000 between 5/1/2018 and 1/1/2019
JimBob#5132 had JimBob#0000 between 2/1/2019 and 5/1/2019 [Gift Nitro Sub]

If I try to pull up a expired Vanity ID, show me the history of users with that vanity ID, additionally provide a gift sub option to help drive potential sales.