Maybe they meant positive R.I.P.-ness! and thumbs up for Jerry in the big Apple Store in the sky. I can't see anyone thinking it genuinely good someone dies unless it's some evil dictator or someone generally renowned as an unpleasant arse. I've never meant whether a plus is supposed to mean good story/reporting, or hooray; good news happiness, so don't usually vote!
Anyway, sympathy to the family and friends. The only good side can be that he went quickly without a long suffering slow end or needing lots of constant care for the next number of years. I'd rather go that way, than lose all quality of life before I go.
R.I.P. Jerry. 🙁