lucy24 - 4:13 am on Apr 21, 2013 (gmt 0)
the only problem with a period is its ambiguity in regular expressions
Periods also have the same problem as lowlines: they tend to become invisible in links. And, unlike lowlines-- but in common with hyphens-- they are not encompassed under \w
Now, if only there were a law prohibiting the use of the letters g and q in links on Canadian sites, where they always get misread as each other...