[switchbak]

Well a lot of this depends on context. I've worked at a place where (for reasons beyond my knowledge), there was a pre-existing false conception of my experience and level. In that situation, it was important to disprove that false perception early. Especially in a competitive environment, establishing your cred is important.

In a more functional and team oriented environment, your advice is absolutely critical.

Regardless, it's the personal relationships that are primary here. And there can be some nuance in how to handle those. Jumping in and alienating people would not be a wise choice :)