I can`t use tools like this nor other local knowledge databases like evernote (although I save programming notes in evernote). If I have a pending question I ask myself two questions.
"Have I ever had this problem ?" "Did I save the answer ? (In evernote or whatever)"
To think about those two answers I need around 2000ms. After 1000ms I wrote the query and asked google again... Is it only me? I wish I would use my local knowledge database but I only use it when I`m not lucky with google after the first queries.