Slop~ _can_ be configured to be a slew limiter, or a linear low-pass filter, or
various other things - the name tries to convey that its identity is
in the eye o the beholder.  My intention was to design the most flexible
nonlinear one-pole filter I could.

Great, thanks for the explanations. This is helping me presenting this object better in my tutorial now :) and it's pretty cool that you can now perform signal glide (linear and nonlinear) with distinct time ramps upwards and downwards in Vanilla, plus the non linear envelopes. Perhaps it's a good addition to its examples. Check the attachment for the kind of thing I'm already including in my tutorial, maybe a variation of this can make it there.