Level 1 - MINAVG 2000 - 30 Links available to use
Level 2 - MINAVG 4000 - 40 Links available to use
Level 3 - MINAVG 6000 - 50 Links available to use
Level 4 - MINAVG 8000 - 60 Links available to use
Level 5 - MINAVG 10000 - 70 Links available to use
Level 6 - MINAVG 12000 - 80 links available to use
Level 7 - MINAVG 14000 - 90 links available to use
Level 8 - MINAVG 16000 - 100 links available to use
Level 9 - MINAVG 18000 - 125 links available to use
Level 10 - MINAVG 20000 - 150 links available to use
<-1> (or any other number)
This means that the user is out of credits, and their links are hidden due to that. The number in brackets tells you the number of links that are hidden. This isn't necessarily the number of links in their profile, because it's possible that you clicked on some of their links before they went negative.
<care>
This is an action link, and your care rating is too low to display the link. If you turn "All Links & HAT" off, these links simply will not display (as if you had already clicked them).
<none>
This user has no links in their profile.
<hidden>
This user has hidden all of their links from the dynasty view. They may still show their links in the main link exchange or they may show up in your history (if they've clicked your link). If you click their links through that page, I believe that this will disappear.
<limit>
Yarold's will only display up to 250 links on any given page. If 250 links are displayed, but more links are available for you to click, those links will display as <limit> until you click some links and refresh. This will only display on the dynasty page or on the click history page, as the main link exchange is automatically limited to 250 links.