You've fudged your figures throughout your two posts but this is your central point, and it's correct: Melbourne has pokies machines and some of those machines would be used by problem gamblers.
I don't think it's the government's role to be banning things that some people become addicted to. And I know you haven't said that pokies should be banned, but if you think it's inappropriate for a football club to profit off 'broken lives' then surely it's inappropriate for anyone to?
Virtually every activity a person can undertake has risk attached and it's up to individuals to assess that risk for themselves. If we're going to ban pokies then we should ban alcohol, smoking, driving, sex, video games...the list goes on and on.
By extension, I don't think it's a football club's role to be making calls on something as morally ambiguous as pokies revenue. If the club decided to divert a percentage of their pokies revenue to organisations that address problem gambling then I think that would strike a good balance between being a positive civil society organisation and not throwing the baby out with the bathwater.