I've spent quit some time searching for this bug with no results, sorry if this is a repost.
Many people call me 'z' for short and I want mirc to highlight that. The problem is that along with the letter 'z', mirc alzo highlights things like zzz, z4, and those should not be highlighted. I've tried putting a space in the pattern but then I don't see when someone types z and then enter (just my letter).
This problem has been around since I can remember. I can confirm seeing it on 6.11, 6.12 and I think that on 6.10 too.
Thanks for your time and have a nice day