Unverified allegations are a terrible way to deal with any systematic problem. Over time they open the gates to terrible abuses in themselves. That said, this approach has credibility because you have litany of viscously abusive men who managed to make themselves impervious to any other way of being sanctioned.

Get enough of that and a larger number of people will view the ends of dethroning these types as a justifying the means of trial by publicity. But if this bad way of solving things continues, eventually there will be a counter-counter reaction.

However, rather dealing with the situation, "sht storm to sht storm", what would be nice would be to have a process that allows bad behavior to be dealt with immediately and effectively and clear standard letting any potential bad-behaver know they're going to face consequences. The reason for companies to have strong, clear policies on this sort of thing is to prevent events of this sort from causing more chaos.

It seems reasonable that X person who's moving into a position that is going to make them irreplaceable to the company should be investigated even more.

Also, applying strong pressure on a subordinate for sex may seem like "just flirting" but it is actually abusive and illegal because it puts the subordinate in the position of fearing retaliation if the refuse. It's different from a person being offensive to a person that don't have a lot of leverage over.