I think you get more noise from time wasters on free sites and people making multiple accounts. The fact that there is some commitment prior to meeting reduces the amount of noise. If I were trying, I probably would pay a small amount to reduce some lowest common denominator riff raff. Alternative, just be prepared for false starts and talk a bit beforehand or take measures to vet.
I was involved in phone carrier billing systems in the WAP days (quasi internet) so saw and analysed usage data rather than dated using them. There were many more avatars than unique phone IDs![]()
Witty is providing decent advice here. Above decent even