HTML_IMAGE_ONLY_* generating too many FP's

[Sebastian Arcus]

I'm having more and more problems with the HTML_IMAGE_ONLY_* set of 
rules recently generating false positives.

Plenty of business emails will include a logo at the bottom - and not 
everybody is a graphics expert to make their logo a tiny optimised gif 
or png - so some of these are slightly bigger than they should be.

However, this seems to be sufficiently wide spread. Also, many business 
emails can be just a few words reply - so the ratio of words to images 
triggers the filter in SA. Could the scores on HTML_IMAGE_ONLY_* set of 
rules be lowered a bit - or is there anything else to be done - aside 
from educating all the internet on optimising logos in the email 
signatures? :-)