Lol, you guys are nuts. Robin uses tech that processes your post though Ajax (or equivalent), so it doesn't have to make a full page request. Sometimes, the return data on those gets sploogified, or the script engine never handles it properly.
The reason the post gets through is because the server got the request and processed it, but your browser either never received or failed processing the return data.
I personally recommend you use Chrome as your browser of choice. Install the AdBlock plugin for sure, and sync it across your google account. That gives me access to all my bookmarks, history, settings, etc... Across all of my devices that use Chrome (home laptop, work laptop, work desktop, iPad, s3cell, etc...).