cTrader and its brokers?

I would like to know in what way do you consider brokers not reliable even if they are offering cTrader platform?

first of all,
I don`t believe AUS brokers and NZ brokers. and offshore Cyprus brokers.
Watch their PDS.
I did use pepperstone ctrader,ICmarkets ctrader,fxpro ctrader,…
fxpro, they are just successful russian big scam broker.
They use their FCA regulation to attract clients.
If you open account on fxpro uk site,they will toss your account to cyprus office.

But you’ve just mentioned only fxpro and their problem, it is not a reason to forget about other brokers providing cTrader