I get what you are saying, and I don't disagree with you. Myself, I think most clients don't understand what Open Source Software is, and honestly, they don't care. They come to us and ask us to do their project, we quote them a price and deliver the completed project. They just care that their project does what they need it to do. Now that isn't saying we should hide the fact we use open source. If a client asks, you can tell them, and then, as they clearly understand the concept, you can also say, "...And We support the developers whose tools we use." Otherwise, you probably don't tell them, "We develop your project on a Mac (Or PC)". If I have new business cards printed, they don't tell me 'We'll be doing your job on a Jamison XR-590r printer. The tools that are used probably aren't what matter.
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