Earlier quoted context omitted.
Why? All they are claiming is that current version is open source and will remain open source. How is it different than stopping maintaining it altogether?
Because they released it as open source purely to lure people in and get them using it enough so that switching away would be difficult for them. If they're up-front with people and mention that it'll be open source up until a time of their choosing, after which subsequent versions will be proprietary, then I don't see a problem and no-one's getting tricked. When I'm choosing an open source tool to use, then I want t…
Just treat not open source product differently than open source. Assume that the current version is all you are getting in open source.