I think it's important to note here that this is not merely a case of a 48 hour silence, but one of at least one legit bug being ignored for 7 months, and another email being ignored for two weeks; coupled with no clear path of providing patches or documented author's intent. (Did he abandon it, did he start rewriting it from scratch? Who knows!)
His frustration is certainly understandable to me, especially as i've been in similar situations.
How about, instead of mocking and lambasting him, we try to help him channel his passion into a positive direction? DBIx::Simple can really need some love, which its father does not seem willing to provide anymore.