I notice that on the web page MUD Planet MUD clients list that MUSHclient is listed with the following comment:
"This is a client by Nick Gammon... I don't particularly know much about it (never used it). Opinions are welcome."
If any forum user feels that they could help MUD Planet by describing what you like - or dislike ;) - about MUSHclient you could go to their Contact Page and make a submission. Thanks!
Another client got a star because it had a free evaluation period - perhaps you could point out that MUSHclient also has an indefinite free evaluation period.