User blog comment:Mineko Charat Lucky/Stop Telling Me What to Build, Thanks/@comment-5695895-20131015202727/@comment-1330314-20131015222647

You're right, insofar as the person telling you what to build is doing so out of valid analysis. That's not the subject being discussed here. If you read Mineko's post more closely, you'll realize that she's talking about people arbitrarily sticking to a fixed build and refusing to adapt to a current in-game situation. To take the above example, may not be an optimal (or even good) item on, but if there's a fed  on the enemy team then it would be wise to get something to counter him.