Maybe you should read this book and get the full facts.
Also here's more facts to back up what I said
Humanity has come a long way to get to the […]
toiletology.com
Finally snopes which you linked is as untrustworthy as a fact checker as the facebook fact checkers. Ie zero.
The facts are - I'll spell them out to you.
Sir John Harington invented the initial flushable toilet but it was only used by a select few in the royal house for a couple hundred years. The in 1775 Alexander Cumming patented the S-bend. The first flushable toilet related patent.
Where crapper comes into the picture is about 100 years later he took the existing technoligy and made it into something that was actually marketable usable and affordable for the general public. Crapper took a relatively unknown thing and made it mainstream. Added a few of his own ideas along the way like the ballcock.
Crap was used as a term long before crapper. But crapper was a thing somewhat because of Thomas Crapper. By Crapper's time, the term crap was not being used anymore. Crapper existing and doing what he did brought crapper into our vocab and brought back the long dead term crap (as used in this way) back into our vocab.
@djlythium
See?? Facts can be crap, if they are about crap.