thanks. was wondering how could something upvoted this high be behind a paywall without anyone asking for the paper itself. It's like people read the abstract and choose to discuss what they will.
I also couldn't be bothered to read on after that.
In some contexts the abstract has a bibliographic rather than reporting function. E.g 'is this paper relevant to my research', not what was the outcome of their research. I agree it is annoying when the abstract is only a tease to get you to look behind a paywall. However in defence and other contexts it is possible to have an unclassified abstract announcing but not summarising a piece of work whose results are classified.