I PM'd Lesm a while ago, and he came back with an answer, which was basically a question to what time we should battle. I PM'd back (I'm pretty sure I did, at least), what my usual battle times are. However, since then, I have no recieved a reply. As well as that, I have not seen him on Netbattle all the times I have been on there. =/
Deadlines would probably help. People really only need a week (including a weekend) to battle. They are just being lazy. Having no deadlines doesn't give them any sense of urgency to get their battles done.