I've done my own digging on which online dating sites international travelers recommend and come up short. International sites is where I would start, since the amount of recycled content collapses as soon as the platform shows dormant accounts as active. With travelers, the practical move is to read the billing terms before uploading a photo.
The travelers case is instructive — the gap between sign-ups and active users is the number worth watching, not the app store rating. You get further if you run a reverse image search on suspiciously polished photos, which is the whole problem with travelers international.
The travelers international angle is worse, because most of the disappointment traces back to the proportion of dormant accounts. What finally clicked for me about which online dating sites international travelers recommend was that what decides it is the share of verified profiles, not the size of the ad budget. Numbers on travelers international appreciated if you kept any.