Regardless of your likes, dislikes and interests you will be able to find an online community that matches.
It is not a place to hang around if you have no intentions of getting involved.
To the rest of the people in the chat room, your ALL CAPS conversation comes across as being rude.
Now, if your evil plan is to come across as a bit on the obnoxious side, ALL CAPS will help you nail it.
If the dating chat room you frequent allows you to 'follow' others in the room, keep this simple rule in mind: don't follow too many people at once. Following three or more members of the opposite sex in a chat room sends the same single.
Using the nightclub example again, it's sort of like you striking up a conversation or buying a drink for every nice looking guy or girl you see that night. Choose one to focus on for awhile and see where it goes.