I mix my lye water in one of 2 containers. Either I use an empty lye container (the 2 lb "roebic crystal" that Lowe's used to sell), or an old coconut oil container (the "lou ana" from Wal Mart). They're sturdy, don't get too soft with the heat, and, so far, haven't shown any signs of wear.
About the bad advice, I actually got tons of bad, dishonest advice from a forum. It wasn't from a soapmaking forum, but the soapmaking section on a biodiesel forum. In there, there's a member who's regarded as the forum's "soap expert", who consistently gives people bad advise, and spreads false information just to sell his book. Fortunately, I've got his number way before I made my first batch, so I wasn't affected by his nonsense, but there are lots of members in that forum that still follow his words as gospel.
One of his favorite agendas is to promote some kind of a "turf war", between biodieselers and "traditionalists" (which would be us).