Is it bad that I use OMG too much in text?
As a sort of joke (I'm 58yo and here it's perceived to be the language of much younger people) I use OMG and Amazeballs in speech just to see others' reaction. It gives us all at least a smile. I don't worry about oblique references to a god, OMG is just part of language to me. So my answer to your question is NO.
Text-speak shows laziness and immaturity.
"It’s kind of like wearing their jeans below their butt. They’re going to lose all credibility,” said Sally Murphy, a California State-East Bay professor and director of the university’s general-education program.
I speak English, not Acronym.
I try to avoid acronyms but omg and brb I use often. I hate HRU and things like that.
OMG's no... In fact I'm betting you are under - using it for the times we are all in right now.
OMG, by Jove, holy cow, jumping Jehoshaphat, for the love of christ. I’ve used them all...no plans to stop. I also say goodbye...which apparently came from god be with you.