If a person is careful, after several Zity and perhaps email exchanges, it is possible to actually meet some wonderful people who truly share your interests. I alone, or together with my wife, have had some great interactions, and never any really bad ones.
But there's an additional step to ensure honesty when meeting someone from the Internet: a phone call. It need not be a long conversation, but I highly recommend it.
It was years ago when my wife and I connected on-line with a lovely woman, who shared our kinky interests, as well as several other things including a general philosophy on life. After several exchanges, we suggested talking on the phone, but "Monica" said that was impossible given her home situation. We thought about alternative ways to connect via telephone, but none could work for her. Okay, we thought and continued to exchange messages, eventually leading to a mutual decision to actually meet. She lived in a nearby state, and we agreed to pay for a hotel room in her area and spend the night. All parties were looking forward to the rendezvous, even though of course it didn't included a commitment to do anything physical (although that was a possibility).
On the big day, shortly before we were to take off on a three hour drive, we received a message from Monica who said she was so looking forward to our meeting and to please drive carefully. Then there was a p.s.: "I hope you don't mind if I'm a man and not a woman."
Well, we DID mind. We give and expect honesty from people. If Monica was trans or a cross-dresser, she never suggested that at any time, and even the p.s. didn't include such a revelation. "Monica" was just a dishonest guy. Lesson learned. Always confirm on the phone.