Met my ex wife on Match. Couple semi serious relationships of 4-6 months prior to that. One was a really sweet, kinky nympho cougar who owned her own business. Being kept was fun for a while & she was an absolute doll, but when she started buying me clothes, it skeeved me out & I booked. I feel bad for breaking her heart, but it was just not meant to be.
Between wives, I hooked up with a German chick who lived in Hungary on Match over there. Married, PhD in some engineering field, spoke 7 languages. She just wanted someone intelligent to have dinner & drinks with & be her sex toy all weekend while she was in town on business. FREAK in the sack, scary smart & fun to drink with, but she was "writes incoherent messages on bathroom mirrors with lipstick crazy". Fun, but I had to ghost her before things got any weirder.
The Command Sergeant Major's wife "in an open relationship" looking for a FWB that was into some disturbingly rapey stuff scared me. Not kink shaming, but that ain't me & even if it were, roughing up a CSM's wife just has bad idea written all over it. I couldn't get her home & outta my truck fast enough.
I was hesitant to use them when they first became a thing, but when you live in a sausage fest town like the 'Ville, where fat girls can be picky, you learn to hunt a bit further afield.