You have to look to the 2 charts, DLeverage and Open trades, if they are stable it means that risk and ruleset are consistent.
SXH is an example of perfect consistency, also BAD and DWZ .
Market is almost random so if you transform it with a stable ruleset the result will never be a straight line.
To have a straight line you would need a random risk (martingale).
Noobs want to see a pleasant return chart but robust funds are never easy to endure.
Going to recent migrations in my opinion YZZ is much more investable than HFD : long trackrecord, bumpy return and stable trading journal.
The trader is not manipulating the strategy to please the crowd.