Tamra Wade struggled mightily over whether to go to the police more than a decade ago, when, she says, a trusted professor forced himself on her in an empty classroom. Ultimately, she couldn’t bring herself to do it. But if it happened now, she says, she’d be a lot bolder — not just because she’s older, but because she feels there’s less of a stigma connected to being a victim of sexual assault. And this, say advocates for sexual assault victims, may be one reason why the allegations …