Not an inside joke. Also, not entertaining having to explain it, but ... In order to populate a text field, your input is converted into a numeric or computer language. Decimal is a computer language. Decimal and Decibel are homonyms. A whisperer would be inaudible out of decibel range. Someone who doesn't post would be out of ... (decimal) range.
As a molester, do you frequently tell the kids to "rollover"