What does it mean when an inbound external link has no anchor text?

[Harley.Helmer]

There are 11k inbound external links on a client's website what have are "follow" links and apperently there is no anchor text for the link.

[samantha.chapman]

Hi there!

Sam from Moz's Help Team here!

Could you please pop an email over to help@moz.com, along with the name of the campaign/URL you're observing and the specific area of the tools in which you're looking so we can ensure we're getting you the answer you need?

Looking forward to hearing from you!