My vrrp address for my dns server at home is 2001:8b0:abcd::53

It's about as easy to remember as 81.187.123.45//192.168.0.53

Almost all ipv6 addresses I encounter start with 2001, so I just need to remember my home prefix is 8b0:abcd, which is about the same length as my home public IP of 81.187.123.45

::53 means subnet zero host 53, which is easier to remember than which rfc1918 range I used (and basically is the equivalent of remembering the 2001:: prefix)

If I have an internal server I'd have on 192.168.4.12 I could address it with 2001:8b0:abcd:4::12 just as easily, with the "4.12" translating to "4::12", and the "81.187.123.45>192.168.x.y" translating to "2001:8b0:abcd:x::y"

Just because slacc gives you an extra 64 bits of randomness doesn't mean you need to use them.