Some people seem to think it's ok to lop a few years off their age or to get creative with their lifestyle and living conditions. They defend their actions with "but it's only a little lie".
In my opinion there is no such thing as a little lie. Bending the truth to protect someone's feelings is one thing but that doesn't apply in profiles. Once a relationship gets more serious and you meet and talk it won't be long before your lie is found out. If you have dropped 10 years off your age or posted an old photo it is instantly obvious.
Personally I would wonder what other lies have been told and would lose trust in that person, even if they say it was the only one. Without trust you have no relationship. Any lie on a profile is a waste of everyone's time and will probably end up with hurt feelings all around.