Hidden Messages in Captchas?

The 5-letter Captchas (Completely Automated Turing test to tell Computers and Humans Apart) that polls boutique uses to verify comments often seem to contain hidden messages to me.  For instance, the last one I entered was H8VHF, which I read as "Hate VHF" (high frequency / low quality TV broadcasts like Fox or CW uses to broadcast in many places).  It could be that the letters are alwasys completely random, and that acronyms combined with the abbreviations used in texting will frequently trigger recognition for a high percentage of semi-meaningful phrases or fragments.  Or it could be a massive Polls Boutique conspiracy to subtly change our way of thinking.