Everyones an expert

[Trigger Man]

I guess it's why its called personal advise. In the end ones opinions will play into what that person writes. Those people that said that there was not enough phosphate/nitrate may have added another fish to their tank when they had the problem and had their algae go away. (in reality the changes probably occured because they could have a algae eating fish, the new fish could have been helping to aleviate over feeding that was occuring and hence leftover food no longer staying in the tank, or it could have even been the end of the cycling of the tank).
I like seeing many opinions before I make a decison so that hopefully the majority is right.
Just think, if the guy does not believe you now maybe he will later, when he does what the others told him and his problem gets worse.