Originally Posted by DenverX

It would be rude for me to show up at the local car show and interrupt an automotive conversation with a billboard advertising a product for sale.

It's also inappropriate to barge into an online discussion, and PM a bunch of people in bulk with an unsolicited product advertisment.

SPAM (electronic) is defined, by Wikipedia, as "unsolicited or undesired bulk electronic message." http://en.wikipedia.org/wiki/Spam

SPIM http://en.wikipedia.org/wiki/Spam may also be an appropriate clarifying definition.

"Messaging spam, sometimes called SPIM,[1][2][3] is a type of spam targeting users of instant messaging (IM) services." -Wikipedia

This is inappropritate, and impolite. Please don't SPAM me again.