My appreciation of horror poetry begins and ends with Baudelaire, so I'm not sure what to make of t. Winter-Damon's "Martyr without Canon" other than it's a jumble of nonsense, like those liner notes a Beat-besotted Bob Dylan used to write for his albums back in the Sixties. It appeared first in Grue magazine, which I don't think I'd heard of before this, a semi-pro zine that ran from 1985 to 1999. Winter-Damon, whose poetry appeared in many small-press horror publications, died in 2008. Another small-press poet, Wayne Allen Sallee, provides "The Touch," a non-supernatural bit of gritty, everyday violence, always Sallee's stock-in-trade.
I haven't mentioned all the stories, however they're fine if lacking a bit of real bite. Wagner's brief introductions provide biographical background on each contributor, which is great because I knew virtually nothing about a handful of them (many included were more SF&F writers, which may be why). He also states "these stories are chosen without regard to theme or method, style or approach," and that well-known writers appear along with the not-known. That's certainly how I myself learned my way in and around the genre back in the Eighties, buying and devouring anthologies filled with names I only dimly was aware of, and then sought out more work by the authors who had the most effect on me—I'm sure you've done the same.