I voted no. Personally I don't judge someone by their grammar, most especially online. Yes I enjoy a well worded, well spoken person or typed post. However, there are a number of people I know that are quite intelligent, responsible wonderful adults but have dyslexia so their typing skills may not be the best. I think when one sets up a website for a business or prints brochures, etc. then yes you do need to make sure they are grammatically correct but that's easy to accomplish with a good proof-reader.
If someone judged our ability to raise and breed quality snakes, based solely on something like grammar...well personally they can keep their money and shop elsewhere as far as I'm concerned...that's just ridiculous! (IMHO)