I had heard that this forum is regularly frequented by fragile egos that find solace by bullying anyone that doesn't conform to their worldview. Sorry, but it is my opinion that you should walk the whole way unless you become injured or are ill.
That is your opinion and one you are certainly entitled to. In this case, it is an opinion and a judgement. Since you are so intent on judging others, it surprises me that you would consider it "bullying" when others judge you. You have demonstrated, through your opening words here that you consider judging others a worthy activity.
I won't participate in the same. If you want to say that it is best to wall the whole way, I won't disagree with you. If you want to assert that one
should walk the whole way, health permitting. I wont say you are a bad person for doing so. I will, however, ask "on what authority" do you make this assertion about what people ought to do? If you say people are doing it "wrong", what is your source for the "right" way to do it? It is one thing to say something is right or wrong for you. Surely you can see that when it comes to applying your opinions to others, people may be nterested in what backs up those opinions.
It isn't the Church and the folks handing out Compostelas. They dont care how many rides one takes or buses or planes or trains until one is wothin that magic 100 km radius of Santiago de Compostela.
it isn't historical practice. I would bet any amount you wish that when Alfonso II undertook "the first pilgrimage", he didn't walk every step of the way. Centuries later, when Aymeric Picaud wrote the Codex Calixtinus, his descriptions make it very clear that medieval pilgrims were not expected to walk every step of the way and that horses were often used for at least part of the journey. Even now, most of our polgrimages, for all but the most diehard or local of pilgrims, start with motorized transit. I bet you didn't walk from your front door and didn't walk to where you started your Camino.
What could it be?
I guess, if you consider a Camino exclusively an athletic ability, defined only by walking a particular route from a defined starting point to a defined end point, then you could say that anyone doing a Camino differently is not really doing a Camino. That seems an incredibly limited view of what a Camino is, to me, but it is a view you are entitled to hold. I don't think you will find many here (or in any pilgrim community, frankly) who share it, though. Most of us who have walked Caminos have discovered how much more there is to them.
For myself, the walking aspect of my Camino has been more important to me in some of my Caminos, and less important in others. I would say, over time, it is becoming more important to me. Given a choice, and just considering myself, I will now always walk all the way if possible. But I know other people who have gone the other direction with their Camino experience, with walking every step of the way being less important. There are other things they are looking for from their Caminos.
I don't judge them for that. You are welcome to. But if you don't have a demonstrated basis for your judgements, people aren't going to give them much weight.