Yeah flushings pointless. I stop feeding nutes the last 3 days but I dont bombard the roots with water or a "clearing agent" aka water with a little sugar sold for $50 a quart.
I do understand though why it can be hard to find the right info. Especially on a topic like flushing. For every dozen oldheads on here that know flushing is pointless theres an oldhead and a dozen zombie like trolls following their every whim agreeing that the bud they smoked from flushed weed tasted better/smoked better.