"In my opinion ... " Of course it's your opinion. You're the one writing/saying it.
"It is obvious that ..." No it isn't. If it were obvious, you wouldn't have to point it out. And if you have to point it out, it can't be obvious.
"There is no such thing as a dumb question." There are entire *categories* of dumb questions. For example:
i. If you're wasting the listener's time, it's a dumb question.
ii. If you're a student and you're asking a question about what's in the book before you've looked for your answer in the book, it's a dumb question.
iii. If I just answered the question, and you ask the question again, it's a dumb question.
iv. If you're asking a question you know I don't have the answer to, it's a dumb question.
v. If you're asking a question I've told you I don't have an answer to, it's a dumb question.
vi. If you ask a question that requires more of my time than you would have spent finding the answer for yourself, it's a dumb question.
And do not be conformed to this world, but be transformed by the renewing of your mind, that you may prove what is that good and acceptable and perfect will of God.
Romans 12:2 (NKJV)