[prof1515]

They might simply find your interface to not be to their liking. Once in the game they may not like the way the commands are set up or how color is used, etc. Finding it visually unpleasant, they might just bolt.

A lot of time players do it based on how many people are online. They look for games with a larger playerbase online at any time. This is why some duplicitous MUD staff sometimes log in multiple accounts. The H&S I played long ago would sport 25-30 on at any time but what many didn't realize is that 6-7 of them were idle staff who never logged out, another 6-7 were those staff members' player accounts and another 10 were idle players who did the same thing (never logged out). In all, the 25-30 online was more like a half dozen players.