I don't know if this is a common problem for all users or a default setting that I have, but when the [CODE] is used, the associated text appears in a smaller font size than the main post text, making it difficult to read in the post. If this is a forum setting, can I suggest that it is increased to match the main text.

Excellent question/request, Stuart. We've only been running this bulletin board for 15 years or so, and I think this is the first time somebody has asked for a larger font on the code segments.
A larger font would have resulted in much less squinting over the years.

I've read up on the subject enough to know that it is POSSIBLE to change the size of those code segments, but can't figure out how to actually do it. I'll keep looking, but am not optimistic about finding the answer.