I'm not sure who is doing the advising (your site seems to suggest, it's coming from a PM) but if it's indeed meant to be serious, then the whole tone is just.

I'm not sure who is doing the advising (your site seems to suggest, it's coming from a PM) but if it's indeed meant to be serious, then the whole tone is just... wrong. Starting with the title. You know how you can make certain jokes about your own ethnicity that just sound mean coming from a different ethnicity? It's the same when someone who is not doing the actual coding starts a list with "Stop saying these things..." to people who are actually building stuff.