He continued editing for Dark Horse as a freelancer, until the company severed ties with him in 2020 amid allegations of sexual misconduct.

[2] As a writer, Allie wrote the four-issue miniseries The Devil's Footprints inspired by a local legend from his hometown Ipswich, Massachusetts in 2003.

In 2008, he started writing the miniseries Solomon Kane,[4] the first two-story arcs of which were expansions of the Robert E. Howard stories "The Castle of the Devil" and "Death's Black Riders.

[9] In October 2015, Allie was accused of groping and biting one individual and engaging in other questionable behavior at the 2015 San Diego Comic-Con.

[13] On June 24, 2020, former Dark Horse publicist and editor Shawna Gore accused Allie of several incidents of sexual assault and harassment dating back to 1999.