The bindAndHandle methods on the Http extension for a while now have 
offered this warning:

Note that there is no backpressure being applied to the connections Source, 
> i.e. all connections are being accepted at maximum rate, which, depending 
> on the applications, might present a DoS risk!


I looked at the Source a little, and I don't know if this is recent or not, 
but I see a mapAsyncUnordered(settings.maxConnections) in there.  Does this 
code negate the need for that warning now as it serves to limit the numbed 
of requests that flow downstream into the handling code?  Does one still 
need to apply explicit handling to the connections Source (via something 
like buffer with a strategy to dropNew) to really avoid a DoS risk? 

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