I am one of those people that notices errors in everything I read (including the registration page for this website). I have proofread professionally for the previous 10 years and 8 months as part of my most recent employment. I tend to proofread everything and was the person my fellow college students preferred to have proofread their research papers before they turned them in to their professors. I notice both spelling and grammatical errors as I grew up with teachers as parents and they were sticklers for proper grammar.