Comment by user3939382

> IPv6 is not an implementation by itself.

I’m not sure what you mean by this. In other words, there is code that is specifically written for ipv6 handling which in some cases isn’t tested as thoroughly as ipv4. Less of an issue as ipv6 adoption grows but it’s non zero. I don’t like the address format, I prefer NAT by default, routing by prefix, like everything ipv6 offers I don’t feel comfortable with even without that. But it’s the most technical reason I don’t like it, the rest is a personal/vibes thing.