Hobbyists tend to be more open about process and willing to share tips than people who are making money as part of a business doing the same thing. Obviously this isn't true for everyone, but in general how do people who do face-ups for a living feel about other people posting face-up tutorials that might, potentially, allow other people to not only join your business but to at least not be a customer anymore? That's just an example. Same thing goes for jewelry-makers, ect ect. I'm interested to see what people think, as I am debating posting a tutorial on making something that I figured out from looking at what someone was selling, so I would potentially be undermining their sales if I showed other people how to do it.