People can comment both positively, and also view their negative opinions on an open forum like this.
They shouldn't be forced to keep quiet.
Yes it is an unfortunate thing that happened to kevin Ash, but in the light of the day this type of accident can and does happen to many people that use bikes for work and play (also cars etc etc).
Most people do not have the luxury to be able to ask others for money to assist their families, and struggle by on what little they have, often losing the main bread winner of the family.
I truly feel sorry for any family involved in losing a loved one, but the family should (but not always) have insurance which will help pay for those things in troubled times, and will assist them in returning to 'normal' life as quickly as possible.
To be truthfully honest, I think that asking for money for an individual is not right, OK hate me if you wish, but this money could be used to set up a fund to assist promotion of a charity/event to rasie more awareness for accidents like these, to make people think more about the consequences of their accidents.
Again, my thoughts are with the family at this time.