If you feel you live in an area where it would put you in harm's way, it might be it would put a target on your back.
If you feel the area you live in is an open-enough area to where your physical and mental wellbeing would not be severely at stake, then maybe it wouldn't.
In the end, we cannot make this decision for you, but just know it is not a cut-and-dry answer. Some places if you come out you would wind up dead within a week; other places it would be something to celebrate as it is intended to be. Most places I imagine are somewhere in the middle.
It entirely depends on where you live and the atmosphere of that place.
I'm not super familiar with this day, they don't have it in my country, but I think most of the time with these types of things the idea is mostly to get people talking and thinking about it so that when people do decide to come out then people have already thought about how they should react and how to offer support.