A lot of the deals posted aren't relevant to me.
E.g. cheap kids books/toys are great - but I don't have kids.
or an 'amusing' tax disc holder that's just junk (http://www.hotukdeals.com/item/300580/i-have-paid-my-tax-now-go-fix-some-)
So, my suggestion is to allow people to hide a deal from their view. It wouldn't affect the heat, wouldn't affect the view anyone else sees, simply hide a deal from the list that I see.
That way I'd be able to click away the ones I don't care for and would be more likely to see and vote up/down ones that I had an opinion on.