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Used it on a longer post last night. Works like a charm, and now it's so much quicker to remove the unwanted links.

A feature that would be cool but not strictly necessary is to add a counter that shows how many links were added.

I think you could also consider to add some text like the one I add to every post (screenshot below) to bring more visibility to the project

I agree! I add a similar text to my posts, but you @kendewitt should consider adding it automatically, in order to get more visibility and letting more people know about your site :)