Most Helpful Guy
It's another means of meeting someone. Nothing to make a huge deal about.
Most Helpful Girl
For me it would be a last resort.
There are a ton of negatives, but if you're at the point where you want to start dating online (I will presume the reason for the question) then obviously be cautious, always ask if they have a girlfriend or wife, and remember that dating online gives you the opportunity to meet lots of people you otherwise wouldn't have met, so meeting the right person is more likely! But there are also a lot more bad/dangerous people too so keep your eyes out... It's a given but best to remind you, until you completely know and are comfortable with the person only meet in public places and in the daytime or early evening. :)