The most important thing for a reader to remember when reading any sort of written review or impression. Nonetheless, we should be thankful that someone was willing to commit their money and effort to writing a comparative impression of most of the top-tier IEMs. Even if it seems remotely useful to the OP's listening taste, I am sure there are others that hear things like the OP and those people will find his comparative write ups to be useful.
Not everyone is capable or willing to invest that much money into IEMs (even if he is selling them off now). Additionally, even if there are people that are capable of investing that much, I am sure not every one of those people will want to spend their time writing up a comparison write-up.
One way or another, what i2ehan did in this thread is a good contribution to Head-Fi.