The Skullcrusher is not terrible, but the balance point of the the thread is explicitly tier 3. This monster is (with just cause) being compared unfavorably to a basic Ogre at 4 of the same RHD, making up the difference in pure Fighter levels (tier 5, or 4 using variants, ACFs and dead level junk to squeeze every last ounce of use). Being compared unfavorably to a 3.5 Fighter is definitely not something to put on your resume.