In said:
We tend to be a bit more forgiving when the banter (a) arose out of a
topical discussion and (b) is genuinely interesting or amusing. The current
banter appears to qualify on both counts. (BTW my (a) and (b) are based on
my own interpretations of when OT banter is tolerated, and should not be
regarded as definitive.)
For the record, I agree with Richard's interpretation. Inserting an [OT]
tag in the subject line at some point wouldn't have hurt, but even
without it this kind of topic drift is perfectly OK.
And now, since we're discussing topicality, we're topical again, so there
no point in inserting the [OT] tag ;-)
Dan
PS But I should have changed the subject line...