You risk time. That is enough for me these days.What "danger"?
When was the last time you actually played a PVP onlinegame where you had to work for having stuff, and lost said stuff upon PVP defeat?
classic WoW PVP is the ultimate carebear PVP game. You risk absolutely nothing, no matter how often you die, it is absolutely irrelevant. Defeat doesn't even hurt your PVP Ladder ambitions like the arena did later in TBC. No honor lost, and in BGs you even got a participation trophy. Just show up and eventually you'll get there.
Is the beta level cap 30 right now?
Yep the beta is capped at 30.