Kushat' vs. Est'

[upthera44.livejournal.com]

What are the differences in usage between кушать и есть?  

Comments

[wolk-off.livejournal.com]

Yes, as a colloquialism, it tended to be also a local thing: you'd hear Ukrainians, Southern Russians, and Caucasians (or Caucasian Russians, while they existed) always overusing it, which, for a Muscovite ear, tended to have a nauseating effect ;-)))

[viata.livejournal.com]

Caucasian Russian here (Northern Caucasus), the usage I'm used to is consistent with what the first comments describe.
Although I've mentioned the overuse of кушать by Moldavians and some Southern Caucasians.