[In Arnold Schwarzenegger voice]
Behold … the Desibilator, (attached).
This ‘desibilator’ plugin is Paul Licameli’s ‘DeEsser.NY’ just with different default-settings, different slider-ranges, & has tips added to the UI.
Previously the default frequency-range was not wide enough: it stopped at 8kHz, (now 13kHz).
Previously the “number of bands” slider went up to 1000 
, when <5 bands is generally sufficient, and >50 will freeze/crash Audcaity.
So this variant of Paul-L’s de-esser plugin is more likely to give first-time-users what they want, quickly, without crashing Audacity.
desibilator.ny (56 KB)