The misspelling in the blurb "Crack open any extenstion or web app in a gallery and see what it actually does before installing" doesn't render a lot of trust.
I doubt using typos to discredit other people's work or opinions is rational or polite. I didn't write that extension, but he/she could just be a non-native speaker like me. What's your problem with people who doesn't speak and write in your native language? Can you write in mine, 100% error free?
I have absolutely no problems with people who don't speak and write in my native language. You're misinterpreting my comment, which was intended to be constructive, and responding with an ad hominem attack by suggesting that I am bigoted.
I think it's quite rational to suggest that work is of dubious quality if something as important as the tagline or elevator pitch contains errors that should be caught by a proofreading or spell-checker. The author spelled it correctly in the title and elsewhere in the text, so it's a simple error, not a lack of knowledge. It would be impolite to not suggest improvements, because the author could use my help.
A rational response to my comment would be exactly as you have done with drv's comment: "Fixed typo, thanks!"
Do you generally measure code quality using typos in unrelated (to the quality, that is) copy? I've seen worse errors in the MySQL docs, but I still trust it to hold data.
Meta: Wow, I didn't expect to be downvoted for this. I wasn't trying to discredit the extension, I just wanted to be helpful. The attempt at humor probably didn't improve my case any, but I can't edit it anymore.
How can I submit comments like this in the future? I didn't see an easy way to submit feedback to serg472 (the author's name isn't clickable, and there's no email as described in http://www.google.com/support/chrome_webstore/bin/answer.py?...), so I dropped it here in case the parent, who was obviously supportive of the extension, wanted to forward it to someone who could take action.
s/extenstion/extension/