The short answer is no - use the introductory paragraph. If there are
longer discussions that can't be summarised in this form - link to them
from the introductory paragraph. I guess it makes sense to some extent,
but I still find myself wanting sticky posts sometimes.
I have found that users don't always read the introductory paragraph. A supplmentary approach can be to put your important message in a resources glossary with a suggestive concept name that is likely to invoke auto-text linking in the posts. I have seen nudgin on some forums by posting a blank reply to push the post to the top but that's labour-intensive and a bit irritating to other users. Stickyposts would be a good idea though.