*Your personal opinions of the author of a source that complies with WP:V and WP:RS need to be stated away from Wikipedia. Reliable sources (as defined by Wikipedia) are needed, and personal knowledge, as you know, is not permitted here... no matter how correct it may be. I'll check your four sources a bit later to see how many fit the Wikipedia definition (I know the Goldmine article is an RS - I'll need to check the others). Please do not remove RS without replacing them with other RS... or a very good reason consistent with Wikipedia policies.