Getting worse, not better

I was viewing my replies tab, and on refresh, they've all disappeared. Twitter gets more unreliable each day. In the past week I've had half a dozen posts simply vanish and never show up. I know of several DM's to me that never made it.

What's the point? Granted, Twitter is collecting venture $$, but it would seem sooner or later they have to actually IMPROVE the product. Right now Twitter's main activity is producing excuses for failed systems.