Fantastic pedantry. Too bad the entire thing is a massive example of paperclipping.
Anyway, more to the point: contrary to as you've said, I don't believe informal conversation should be devoid of grammatical accuracy. You're speaking English, bastardization of the language isn't forgivable simply because we are friends. The nature of the BLF is entirely informal to me, but just because I understand the semantics of the message doesn't mean that it carries an acceptable level of grammatical accuracy.
I cluod tlak lkie tihs and you wuold hvae ltitle tourble unedrsatnding me hwover tihs msesgae deos not crary an acectapble lveel of grmamtaiacl acucrcay.