Protesting someone for wearing a CE certified life jacket would be very unsportsmanlike.
Absolutely not true. We don't get to pick and choose what rules to enforce or not enforce. Personally, I wear a CE jacket, but I understand the risks associated with it. If someone protests me for it, I'll accept the consequences and move on. However, I will not protest someone for wearing one. That is probably more unsportsmanlike than protesting someone for wearing one because I have chosen to ignore a rule.....twice. Once by wearing the CE jacket, and once by opting to not protest someone that I know is breaking a rule.