I see.. What happened was that the plugin was building a list of all 30,000 post titles. Thank you for pointing this out – I think it’s only practical to have a list of less than 20-30 post titles.
I updated the plugin to set a maximum limit (25) so that the plugin doesn’t get stuck going through too many post titles. It’s possible to override this by setting a specific number instead of zero.
Please let me know if this works for you.
I’m glad the update solved the issue. You know, I don’t have much experience dealing with that many posts – so please let me know if you have any other suggestions to make the plugin more useful in your situation.
In fact, I have another plugin that shows a content overview, and I can imagine it may have difficulty dealing with 30,000 posts. When I have more time, I’ll set up a test site, and automatically populate it with thousands of posts, so I can check how the plugins behave under those conditions.