Or use "date of birth" or possibly "birth date" instead of "birthdate". Also, we don't know what the LinkedIn info said. The submitter might have written "I wa

Or use "date of birth" or possibly "birth date" instead of "birthdate". Also, we don't know what the LinkedIn info said. The submitter might have written "I was born on 4/20 so you know I'm really cool and laid back."