Posted By:
Jack FitzKeeping Track
Noting the time of the last post read works for me.
Spell Checking
Even when spell-checking is available, many posters don't use it. For those who really care, browser toolbars, for example Google's, often will spell-check.
Activity Counter
Many forums include activity counters, sometimes even assigning titles according to activity. No one takes the titles or the counts seriously. Both are misguided efforts to develop "stickiness."