Organiser here. Back from LEJOG with my son; he is amazing, finished off his Brevet 500 in the process, added a lego brick to the largest model in the world at Chester Cathedral and climbed Ben Nevis amoung other things!
Didn't expect to cause such a stir with this one.
Simply put I'm not forcing anyone to do anything. The statement is clear on the calendar page. As I have mentioned and someone has pointed out I have run this twice as a club DIY and now open it up to like minded people. I've experienced weather over both times from frozen water bottles 30km in with frost covered fields, glorious sunshine, warm night, freezing night, walls of wind and rain, no rain, no wind, tailwind.
From the freezing one the roads were clear bar one place early on the 2nd morning which I will identify prior to the event; otherwise frosty, we just took our time. The route is advisory so any entrant can choose an alternative if they wish based on the weather. Or should they decide DNS/DNF. Risk? Life is riddled with risk and we are all potentially a strain on any service/person in all walks of life at any moment. Access the risk, be prepared and act accordingly. ie buy some winter tyres in advance just in case!
If you are asking for advice about clothing, tyres, what to do if you get a mechanical in the middle of the night with no one around and cold fingers etc I suggest you try something else, probably shorter on the edge of your comfort zone before attempting this.
I've set up another post where those that have entered can communicate their accommodation, travel arrangements, campervan sharing (no problem with staying in a (camper)van parked on the road near the start) etc:
https://yacf.co.uk/forum/index.php?topic=109457.0Spaces are limited as my house will be HQ, and therefore no option of starting from else where especially if I join in; plus the controls are identified for their opening time availability, I'll also list other establishments and their opening times. Otherwise ECE is always an option