What was the worst story-line in pro wrestling you actually enjoyed? For me it was hands down The Big Show/Big Bossman feud in late 1999 that centered around Big Show's father. A guilty pleasure within a guilty pleasure.
Off the top of my head I'd say the ridiculous feud between Bobby Heenan and Big Bossman, where Heenan made vaguely insulting remarks about Bossman's mother and it turned into a blood feud with Bossman picking off the Heenan Family members one by one as a result. It felt like a relic of the 80s but by the end you wanted to see him finish off the job.