As a rule, it is a good thing to speak one's mind as long as there is the proper acceptance of responsability for what is said.
In this case, I would think that the most significant context to remember is that this is the writer's judgement, easily expressed and just as easily dismissed - unless he wants to elaborate and offer sources and arguments to sustain his statements.
What could be dangerous is taking his statements as implicitly true and unquestionable. It is good practice to seek the main objections and criticism to any ideas and see how much water they may hold.
It does not follow that there will always be any significant equality of validity, mind you. Quite on the contrary even.
In this case, I would think that the most significant context to remember is that this is the writer's judgement, easily expressed and just as easily dismissed - unless he wants to elaborate and offer sources and arguments to sustain his statements.
What could be dangerous is taking his statements as implicitly true and unquestionable. It is good practice to seek the main objections and criticism to any ideas and see how much water they may hold.
It does not follow that there will always be any significant equality of validity, mind you. Quite on the contrary even.