I'd suggest we wait until the public data dump becomes available, and analyze the data to see how the tag usage distribution falls. 

Frankly, I don't know enough about network administration to judge whether the tags you used in the [question][1] you mentioned in the comments are necessary, or whether having <kbd>site-to-site-vpn</kbd> and <kbd>vlan</kbd> are also important, so I just have to trust your judgment that they are.

However, unless this happens relatively often and is negatively affecting the use of tags for their intended purpose, I wouldn't hold your breath.

  [1]: https://serverfault.com/questions/64465/slow-performance-with-mpls