On the main site, we have over 2200 tags, at 36 tags a page and 63 pages. The majority of them have at least a tag excerpt, if not a tag wiki. However, there are a decent number without either. Counting the number of tags without an excerpt manually would be cumbersome. Is there any way to determine how many tags lack excerpts?
SEDE to the rescue! Most common tags with short, long, or missing excerpt or wiki - you can tweak the input parameters as desired.
Thanks to @amaranth for the link.