more search options?

when we use the search feature we use a keyword, but i was wondering if it would be a good idea to have a search by the poster button,

for example if someone remembered a post i wrote and wanted to go back to that message then they could type my username into the box and it would come up with the last 50 or so posts that i have made.

I know that the flagging feature is there to help find threads, but if someone wanted to find a specific post by someone then this would direct them to it.

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