I've been on a dating website for years, met quite a few people, fell in love once, fell out of love, turned my life upside down ... no regrets but if I'd known then what I know now, don't think I would have had the nerve.
Some of the scams are incredible - scamming lonely singles, especially ones on their own after long happy marriages who are almost frighteningly naive - is huge business, I never got targeted - I'm not rich enough! - but after reading a few cases I'd never say I'd not be that stupid. We're not talking "send airfare, love you long time" we're talking high-quality performances
Some of the singles are destructive, sociopaths or simmering with rage, dragging round toxic baggage, their charm at the start swiftly tarnishing to show the ugly beneath. And it's always, always, YOUR fault.
Some are as shallow as plates, selfish to the core, out for number one, and not about to mellow any time soon just because they're older, but looking for a sucker to fund their "retirement". Caveat emptor.
Some simply cannot resist the temptation of carrying on searching under a new profile, just in case. Hedging their bets. Wanting a backup, or hoping to upgrade. Grrr. Keep an eye on the website, especially familiar-looking descriptions!
The thing is, all those people out there in real life too, but they can hide better online. If you are careful, cautious, listen to your gut, and enjoy the chat - it can change your life. Like I said, no regrets.