Question about arrayLimit

[stream7]

From the readme:

qs will also limit specifying indices in an array to a maximum index of 20. Any array members with an index of greater than 20 will instead be converted to an object with the index as the key:

Hi there! I was just wondering what's the reasoning behind this decision. Why have a limit there by default with such a surprising behaviour? (returns an object instead of an array)

[ljharb]

The decision long predates me; all I can find is #18 (comment).

I'm assuming the limits, and the behavior, prevent DOS attacks by crafting malicious input.

[stream7]

@ljharb I can't say I really understand the reasoning (and I read all of the history/issues), I would assume this kind of security protection belongs to a different abstraction but thanks a lot for checking and for pointing me to that discussion (I should have searched better :) ).