Discussed on French Wikipedia:
Some wikipedians would like to have an automatic detection of "questionable
modifications". Questionable modifications, mean, modifications that have a
great chance to be a rookie's test or a vandalism. This automatic detection
may be done by check, for example:
* Article size reduction limit (or %): someone replace an article by "I rule
Wikipedia!" or cut half the article.
* Minimal size of new article: someone create an article with only "Hello
world!".
* Length of words or letters repetition in small articles:
"yyyyyyyyyyyyyfffffffffff".
There are many other criteria that can define "questionable modifications",
but this can handle a lot of case we run up against. Those questionable
modifications may be displayed in RC (for sysop or for all) with a different
mark (color, bold, italic or any visible marker). The goal is to give
information on witch articles have to be checked.
Aoineko