I fully agree any protest should be peaceful, but transparency is important.

Let's imagine a world where as you suggest, corporation names are revealed but not individuals. Well, where does that leave us? Maybe I'll just go as myself instead of my company. I won't represent my company, I just happen to be its CEO, its chief lobbyist, or whatever.

So no, we'd need full transparency. This kind of thing is common among various branches of democratic governments. Presidents' schedules are usually mostly public, fundings of various sorts are public, etc.

Opaqueness leads to darkness.