Originally Posted by henners88
Some returning members are also easier to spot than others. Sentence structures and unusual phrases tend to give them away initially. Their likes and hates are just the obvious sign's along with a recognisable attitude. Sometimes a simple forum search for a particular word for example, highlights threads and posts where it has been used in the past. If the current member and the one you suspect are the most common users, its just one piece of the puzzle. Whether you can be bothered to go to those lengths is questionable of course lol.
Obviously for the mods they need to be able to prove beyond reasonable doubt and coincidence just doesn't cut it. Sometimes its also good to give people a second chance and see if they are taking a different approach with their attitude I suppose.