That is a bit out of order Dave - at no point did craz say that they were organising bike rides for people that can't/won't do them - a lot of people can and will do them! Also, fact is that a lot of people are more willing to give to charity if they feel they are "paying for something", i.e. someone climbing everest, so money gets raised that normally would not get raised. And to be honest, if I wanted to do an organised charity challenge, I would rather sign up with a company where I know that half the money I raise won't end up being used for their admin fees etc!
Also, it is not just about the charity is it? These rides offer people that might have thought they could only just cycle to the shop to actually achieve something and to push themselves, but at the same time the targets are set in a way that the average Joe Blogg thinks yes, I might be able to do that and I will be able to raise enough to go. Not everybody is/feels ready to cylce thousands of miles and raise thousands of pounds. The Charity Adventure rides give people a chance to get that sense of achievement! And it is a major achievement - for some people a ride of 250 miles is nothing, but for a lot it is a huge step and the feeling when you have completed it is fantastic. Certainly for me, it was one of the things that got me into cycling properly. And Craz and the rest of the guys put a lot of their time and effort into offering people that chance, so why have a go at him?
However, it is a given that if you sign up for a charity ride, you would be expected to raise at least some money for said charity - fairly obvious as far as I'm concerned. So I don't think that it is surprising that it's frustrating for Craz if people just sign up, take advantage of having everything organised for them and then turn round at the end to say "sorry, have not raised anything". You can't tell me that with a bit of effort, it is not possible to raise at least something - and if you are sure you can't, you shouldn't sign up for a charity ride but maybe do a cycling holiday instead. Like he said, last year there was no minimum at all, but to avoid what happened then, a small minimum amount has been put into place.
As for the office collection system - I don't know of anybody who has been held at gunpoint to donate, if you don't want to, you don't...certainly, in my office, there is a lot of people that won't give anything on principle - there is no problem with that at all, it's not compulsory and nobody is forced!