I'm not convinced (although in case I seem to argue too strongly, I will admit at this point that I have no particular knowledge on these points: so I am here to be educated). My impression is that we see a fair number of cases of 'I didn't know about the prosecution' where it turns out that a false address was given
That is different. Where people give a false address and their real - or similar - name, it is possible to do some data matching/approximation and send a letter to who the defendant might really have been.
and it's my further impression that in English law there's nothing special about a name except as being a convenient distinguishing mark - it's easier to call someone 'Fawkes Cat' than it is to describe them in a way that won't apply to a dozen other people living in the same street. So on the assumption that you're not really named after a character from Radio Active, and that you don't live at 69 Acacia Avenue, I would suggest that although those were the details that you gave, a conviction would still stand.
It would, against Michael Hunt. It would not come back to me unless there was some sort of evidence. I would not suffer any consequences.
For sure, there might be practical difficulties in rounding you up in that giving your real name and address makes it much easier to find and punish you- but if you happen to drift into sight of the authorities again, then you wouldn't be able to walk away from the previous conviction on the grounds that you're actually called Walter E. Go rather than Michael Hunt, or that you live at 1 The Street rather than in Acacia Avenue: if the authorities were able to demonstrate that it was you that they had caught, regardless of the name and address you gave, you'd still be on the hook.
How would they be able to demonstrate it was the same person?
Let's say I call myself Michael Hunt in 2025 when I get stopped and I give my real name in 2026. Both times it's for being ticketless or using a Freedom Pass I found or whatever, so no fancy data trawls can happen. How, exactly, do you think they will realise that Michael Hunt and me are the same person, and it was all a ruse the first time?
Magistrates' courts convict nonexistent people all the time under SJP, with rail offences surely one of the most common (others, like driving offences or TV licence offences involve a registered vehicle or address visited - not just stopping some random person in public and hoping they give the right details).
And again, I will argue that this is how it must be: otherwise everyone would just give a false name and walk away when caught in their wrong doings.
There is a good reason that it is in the Bylaws that you must give your name and address when stopped. It is because it is necessary for the enforcement of the Bylaws.
The problem with this is you can say you are whoever and there is no requirement to provide ID, as we see frequently with people who get post because some other person gave their details. And most of the time, that is the end of it. The action gets dropped because they don't know who the offender is. Millions of pounds in court fines get uncollected every year.