Some people aren't the best at spelling and grammar. I get that. A lack of spelling, grammar, and/or proofreading skills isn't all that critical to Facebook posts or e-mails between friends. But writers who write for a writing publication really should know better.
Here's the subject line of an e-mail I recently received from a writing magazine:
Win Cash and Prizes with you best writing!
Your best writing. With an 'r' please.