Just an update on this: This feature has now been added, so you can now view skill data for unranked skills (as long as they are level 30+) on both the user profile and history pages. So, for example, whereas you previously needed level 63 in attack (rank 2,000,000) for your attack xp to be tracked, your attack xp and stat progress for attack can now be tracked as long as you just have level 30+ in that skill.
This opens up a lot more data to anyone who has worked hard at training an F2P skill above level 30 but just hasn't gotten it on the highscores yet.
