Need to capture “keyword” added to the end of the post, even with “pretty permalinks”

by

If the user decides not to enable pretty permalinks, then I would respect their decision not to enable them.

Two potential options:

  1. Simply state that the Plugin requires pretty permalinks to be enabled in order to work
  2. As a fallback, just append the keyword as a query string if pretty permalinks are not enabled.

EDIT

Perhaps try this tutorial for extending the WP rewrite rules?

Basically, the rewrite rules are an array, so you crate a function that pulls in the array, manipulate it, and then return it; then you hook that array into the generate_rewrite_rules hook.

You might also reference what the WP Access Control Plugin does.