I think I know the type of interactions you mean, and I wonder whether it's a cultural thing or a language issue of which I am not aware: I have received a bunch of e-mails from strangers telling me something along the lines of "I request you to do X", where X is something related to a project of mine. I always tried to see this as a sample of "inexperienced person not expressing themselves politely." It's the most charitable explanation, but maybe someone else with more knowledge about the cultural differences can comment on this?