I didn't know OPM had been removed from MD or that there where (multiple) new chapters beyond 143. So I suppose this removed chapter was helpful to me in that way.
edit:
I understand needing to remove entire series sometimes to stay out of legal trouble, but I do wish we'd get a notification when this happens - to a series we are set to follow anyhow. I wouldn't care about Naruto getting removed or something. Something I actually follow... yeah a simple notification would do. But considering how many of us use MD to keep up to date, lacking any notification is problematic. Don't need a site-wide announcement, but like how you get a little notification for @<you> in a thread.
Likewise if some group requests their chapters deleted for <whatever series> and you follow that series, a notification for that would be nice. But just one notification, not 100 notifications for 100 chapters.
edit2:
I filed a suggestion regarding my first edit.