100,000 is just the minimum figure for the case to be heard in the high court.
Hayden's costs (if you can call them that) are, owing to being a litigant in person, 19 pounds an hour, and aside from their particulars of claim, very little has occurred except for them sending fairly regular toothless and demented letters to my solicitor (you know, an actual, professionally recognized, one), most of which I choose to ignore. The only real cost to Hayden is one of time (although I'm not entirely convinced of that given the speed at which they manage to send further demented replies upoon the occasions where I'm forced to acknowledge their existence). The cost to me, however, is in terms of money. They know, and exploit, this. No-one should be forced to spend thousands to defend themselves against someone unable to deal with the slight to their not inconsiderable ego caused by people telling the truth online.
I am largely silent, or at least trying to avoid saying things that will make my solicitor frowny, for now. This is going to change once my case is over since I believe some things are in the public interest.