I have 12 44-gallon grey Brutes in use (3 as refugia, 2 as a sump, 3 for limewater, 2 for Ro/DI and 2 for new salt water). I've been using Brutes for 19 years with no apparent issues that I'd attribute to them.
FWIW, I do not think that Eric Borneman's comments on Brutes are particularly reliable or noteworthy. He never even noted if he washed them after buying them from a store where, as well all have seen, birds often poop on them, pesticides are stored all around etc. He also has no idea of what chemicals are put into trash cans. Plasticizers, for example, as not used with polyethylene, such as a Brute. it is soft and plastic enough as is. So to encourage people to think that plastizers may have been the issue is not useful.