Recommending the use of Impex for the simple act of changing hosts I think is what shows a lack of experience. From what I understand, the use of Impex is useful when changing forum software, not hosts (I have not used it). This advice could lead to needless headaches.

Having the title of "Coder" does not give one the ability to "judge" per se, it simply means that the user has uploaded a certain number of products with a certain number of installs (I think). This, in and of itself, leads to a certain perceived credence for the advice of the user, because of the simple fact that if you can successfully code for vBulletin, then your understanding of the platform is likely greater than the average member here, but certainly not necessarily in all cases.

Personally, I have noticed your posts in general as being helpful in nature, but naive in experience. It is good to be helpful, but your help should be pertinent and relevant and most importantly should not lead users in the community to take steps that will harm their sites or cause them unnecessary work.

I help administrate a math help site, and we take great exception to users who post misleading help, no matter how well intentioned. :)