It is called "stop hunting". The standard "definition"... https://www.investopedia.com/terms/s/stophunting.asp Something a bit more controversial/opinion based... https://tradeciety.com/stop-hunting-in-trading-exists/
The only thing "certain" about trading, is that there is nothing certain. My left brain strives to find it, while my right brain keeps me balanced through the process.
In shit CFD platforms maybe. But consider this, regular market participants might be unknowingly do that as well. If you develop and then act according to a rule: Certain price conditions => A certain large enough mean return over a particular hold duration => Go long/short, i.e. same sign as return for that duration And if turns out the underlying return driver is actually retail stops being hit, then you might not even know about the cause, but your algo is contributing to "stop hunting". At the end of the day, concern yourself with whether you are profitable, not blaming the market [if we're not talking about scammy platforms].
Kind of reminds me of the old saying, "Markets can stay irrational longer than you can stay solvent."
In YT channel UkSpreadBetting search stop loss hunting, an old pro tells everything. Most recent example - UVE. Good buy, btw.