There is nothing wrong with conversing with people who share you same interest online. However you have to make sure you do not share any personal information unless you personally know this person.
Things to keep private to your online friends:
- Your address.
- Your social security number or personal ID number.
- Your children's names and schools where they go to. If you must say, let it be one or the other, not both.
- Your phone number! People will look up your address by your phone number, DON'T give it away, period!
If people want to get too personal with you and urge to meet you somewhere, be suspicious, why the urge? Nothing is what it seems online. Research the person's online activity before you decide to get personal with them.