I beg to disagree. I found the post pretty distasteful. A doctor blithely describing his own patients' illnesses as "self-inflicted" displays an unpleasant sense of smug superiority and crass insensitivity.
I got the distinct feeling that the poster wasn't that far off actually wanting to penalise these feeble untermenschen - after all, they're probably 'the benefit thieves' you seem to despise so much.
Quite a few fell-runners I know (and good ones) have had problems to greater or lesser extents in the past with alcohol or drugs, and the last thing they would have wanted is 'help' from someone as grossly insensitive and superior as that. Don't worry, they're 'hard-working' now though, so you can rest easy.