Google Analytics (Real-Time) filters not working at all

You may be like me and wonder why it seems that Google Analytics Filters are not working at all -- on the Real-Time Overview page, for example.  It was here that I've been bashing my head against Hostname Include and Exclude filters, expecting the Real-Time data to be filtered.

Apparently, Real-Time data in Google Analytics completely disregards any Filters.

That's got to be a bug!