[arjie]

This guy likely overestimates how important his app is. Usually, I don't want to have a conversation when I try something out. Now he's gone and sent me a huge email expecting me to read it right after I tell him to stop sending me stuff.

I'd be annoyed. I wouldn't respond harshly, but I'd be annoyed.

It probably works to 'convert' people, though, so more power to them.