Is it me or does the link_updated column in the Links table of WordPress not do anything?

mysql> SELECT link_updated FROM wp_links;
+---------------------+
| link_updated        |
+---------------------+
| 0000-00-00 00:00:00 | 
| 0000-00-00 00:00:00 | 
| 0000-00-00 00:00:00 | 
| 0000-00-00 00:00:00 | 
| 0000-00-00 00:00:00 | 
| 0000-00-00 00:00:00 | 
| 0000-00-00 00:00:00 | 
| 0000-00-00 00:00:00 | 
+---------------------+
8 rows in set (0.00 sec)

I mean, sure I’ll be able to hack it to actually be useful, but I was kind of hoping not to have to do that. The eventual goal is to have links added to my blog’s timeline just like posts, in the style of a certain awesome blogger.