It's a tough one, the club are being paid for advertising so why not just take the cash but there's no doubt that the club's image and the company themselves should be taken into consideration.
When Jnr was a mascot 10 or so years ago, they were taken round the Hall Of Fame and John asked them to compare one of the old shirts to the current one, meaning the badge had completely changed for one. They both immediately said 'no name on the shirt' meaning lack of sponsor.
We can argue that it doesn't matter but I'd hazard a guess that if I threw 20 sponsors into the mix from last season, most would match them up with the correct team. So where do we morally draw the line and should we ? At the end of the day, if Netto offer us £100K for the season but Quick Quid or the like offer us double, I guess it's a no brainer as we probably can't pick or choose these days. They are a loan company, admittedly praying on the vulnerable and taking advantage (which the government are alledgedly looking into) but that's it, a loan company. As people have said, there was no outrage when HFS Loans were the sponsors.
As ever though, reputation means a lot and for me, being associated with, and advertising such a company is not something we should necessarily be getting involved with.