Apologies for the delay in response, I've been without net access for a
while.
As to your problem, this is mentioned in the docs:
HTML Entities
HTML::Strip attempts no decoding of HTML entities. Use the
imaginatively-named HTML::Entities (specifically, the decode_entities()
method) for this purpose.
I'm somewhat loathe to make HTML::Strip depend on HTML::Entities. I may
at some point implement this using dynamic dependencies, however (i.e.
allow an option to $hs->new() which sets it to automatically decode
entities, provided you have HTML::Entities installed).
For now, I'll add a specific example of how to use them together to the
docs.