Forum OpenACS Q&A: text fields in acs-mail-lite and (?) notifications

SloanSpace has run across a fairly severe problem that's filling my
mailbox with watchdog error reports ...

If a package, say forums, sticks something longer than 4K bytes into a
notification everything more or less barfs due to the use of text
rather than CLOB fields.  It looks like it causes sweeping to fail and
leads to repetitive failure because the offender neither gets sent nor
deleted.

I'm digging into this in a few minutes but ... is there any reason not
to use CLOBs here?  I realize they're a bit less efficient but isn't
it best to send the full text of forum posts and the like no matter what?

Damn I meant to post this to the dotlrn forum, please ignore, I just clicked on the wrong forum link.

(I'm reposting over there, don't answer here please!)