I understand that links used to be a big thing when Wordpress came out and during the blog rise, but the link feature is so underused nowadays that as of version 3.5 it is hidden by default (thus greatly discouraging its usage).
Moreover, I don't see any reason why Links themselves shouldn't be a Custom Post Type as it would be much more consistent with the approach Wordpress has taken in its data architecture.
Is backwards compatibility the only reason why such basic things as the db schema aren't touched? Or is there some other reason I am not grasping?