I remember this being brought up a long time ago...
My suggestion(s):
1) Disable 'Find threads' on the drop-down menu so that only entries
within the menu are active. This would mean that clicking [directly] on 'Find threads' would simply open the menu.
2) Change 'Find threads' to produce an 'Advanced' page that searches
only threads.
In the meanwhile
@Karlon - please be patient with them - the software they are presently using has some very serious unfortunate limitations (the search feature is "weak" and is one of the worst of them) - and, may not even allow them to change it! However, I do not know because I have never set up a copy of it to 'tinker' with it to find out what it can and cannot do. I do not even know whether it is open-source or not. If it is open-source, pretty-much anything is doable - it is just a matter of what it will take based on the way the software is currently written. I have just never looked into it.
BTW - if you want to see a
really good search capability/tool/utility (not totally perfect [yet?], but really good) - go check out the
Bible Search utility on my website...