[throw03172019]

I’ve never heard a customer say “on-premises” when talking about servers they run. On-premise is usually the term regardless if it is “correct”.

[snozolli]

54% of Americans read below a 6th grade level. People word-mash "alot", "atleast", and now "eachother" all the time. Sports commentators use verse when they mean versus.

I'm not suggesting that you correct your customers, but there's no reason to sink to the lowest common denominator when writing.