I think you are being a bit unfair. Many of the people asking about derestriction may well be unaware of the legal situation. This is quite reasonable, they see lots of other people riding assisted and without pedalling at well over 20mph, and the police not taking any notice. Why would it enter their minds that this was illegal?
(p.s. Of course, many of the people asking about derestriction do already know it's illegal and don't care, but we shouldn't assume that unless it's very obvious from their post.)
Also, they mostly don't know much about ebikes (why should they) so they can't very sensibly take active participation in the forum other than to ask questions.
Our response in cases like this should be to inform them (politely) of the legal situation.
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So, for OP.
In case you were unaware an ebike can only be classed as a pedalec if (a) the motor has a continuous rated power of 250w or less, and (b) it cannot provide any assistance over 15.5mph, and (c) various other details.
(a) is confusing as 'continuous' and 'rated' are rather unclear.
There is a 10% tolerance for (b).
If it satisfies the pedalec rules it can be ridden exactly as a regular bicycle.
If it does NOT satisfy them it counts as an S-pedalec which is legally pretty much the same as a moped. You much have it registered, insured, and wear a helmet if you want to ride it on the public road. You cannot ride it on any bridleways, canal paths or other off-road places accessible to the public.
The chances of being caught for breaking these laws is pretty slim, especially if you ride sensibly, and the chance of being prosecuted even less. If you are, you could (in theory) be fined for several motoring offences and have your license endorsed or even removed.