If you're going to state an opinion, you ought to give some justification. Linus can use as his justification the experience he has gained from running a major

If you're going to state an opinion, you ought to give some justification. Linus can use as his justification the experience he has gained from running a major open-source project. Someone who has not run a major open-source project cannot use that justification. If pg wants to talk about starting a successful company, he can use as a reference his experience starting that thing he sold to Yahoo! for loadsamoney, et cetera.