I figured that it would allow my name to be shown upon winning any prizes, although there being a threshold doesn't impact my feelings about it. Either way, I'm not interested in people knowing anything about my savings, and I was surprised that this was default-on and buried in the Privacy section, where I only had clicked out of curiosity.
In my case, there are only a handful of Tavi's in the world; first name alone would be better than the combo, but still not great and I would still always want to opt out.
