Gmane is a public, open service.

Actions that may lead to denial include:

  • Really excessive downloading of articles. I mean, really.
  • Address-harvesting-like behavior. (Selecting many, many groups, reading few articles.)
  • Feeding articles onto Usenet.

It takes a lot to trigger a denial. Nobody who uses Gmane with a normal news reader can cause a denial.

Since there is no way to identify users, news readers are denied on a domain/IP basis. So if somebody on a machine close to you downloaded the news spool yesterday, you're likely to be denied today.

Here's a list of current blocked domains/IP ranges: