I was tanking ODS a day ago. I was on Arcanotron. I have +1.57% to hit. I missed exactly never on my unassisted interrupts. I recall reading that skull bash is not appearing on recount like it normally should be under interrupters, and I can attest to this. There are some encounters where a missed interrupt can be the difference between wiping and success, but this isn't a thread about "What bosses do I need to guarantee and interrupt, and should I, as a tank, concern myself with hit cap so I can interrupt?"
It seems like people are posting here without reading this entire discussion or even one of the several threads that exist on this very issue. elossa, threat is not an issue outside of the first few seconds of a fight. If it is, you are doing something wrong or your DPS dont understand threat management.