Nothing like a bit of condescension to start the day on a good foot.
Not using the correct pronunciation and grammar seems a bit lazy and sloppy
Ah, so people's accents reflects not only their degree of professionalism but also how lazy and sloppy they are. Silly me. And here was I thinking that one's accent was first and foremost a reflection of one's social environment, especially (but not exclusively) while growing up. I should have realised that it really is nothing to do with that and all to do with laziness and sloppiness.
How about yourself
Well, as a non-native speaker who does not master RP, I would have to know my place as an irremediably unprofessional, lazy and sloppy individual in you books.