I'm not trying to be a charity party-pooper, but my guess is that some of the posters have less of an issue with the concept of giving to charity than they do with the concept of being (more or less) forced to give to a specific charity that happens to be the charity endorsed by their place of employment, in this case UW and UPS.
All charities have overhead, some less than others. The United Way is certainly a good charity, but come on people, there are thousands of other worthwhile charities that are as deserving as UW.
If a UPS'er wants to give their donations to another charity, or simply doesn't agree with UPS's 100% compliance push for EACH AND EVERY EMPLOYEE to donate to the UW, does that really make said UPS'er a charity-hater?
People, please. The United Way isn't the only charity out there...