Earlier quoted context omitted.
In crypto spoofing is pretty prevalent. There are even tier 1 tradfi market makers who heavily engaged in not just spoofing but quote stuffing as well across crypto markets. It's annoying to see, but not a big deal per se: your order book imbalance features just get weighted less heavily and you move on. ofc spoofing is illegal in tradfi, but if it wasn't, I kind of doubt it would even matter: market participants wou…
There are also trivial technical solutions to this. Make orders non-cancellable for a certain period of time, throttle cancellation rate, etc. Any crypto exchange could implement this and win market share if it is really a feature that traders want.
Exactly, in a similar manner that the PDT 4 trades in 5 days rule is implemented.