Not everyone keeps up to date with the blog posts, and it's too easy to completely miss them depending on when you're looking on sites like Reddit to get your information.

Not only that, but what items that are getting removed was not explained properly. While we were warned about the Guild Bundles in advance, the sudden removal of the first set of JP Planeswalker Sleeves only left a bad taste in everyone's mouth.

I'm actually fine with the items in the store being rotated out, but it's clear that there are too many people who were intending to spend money on these cosmetics and simply didn't know about their removal ahead of time.

Put a timer (like the ones on game events), in the game client if you really want to force this artificial sense of urgency. Don't just put a little snippet in the weekly updates because it's clearly not getting across to the general playerbase.