I agree, some users are impenetrable. I don't think anything we do will be completely effective.

The question is, will this make a difference that's worth the effort? If it's an easy change to make, it may be worth the effort even if it makes only a small difference. I hate to say "cost benefit analysis," but that's about what we're doing.

• How hard is it to make the change? (cost)
• How much will it improve the posts of ignorant users? (benefit)
• How much will it annoy other users? (cost)
• Does it cure cancer? (benefit)
• Will it destroy the Monastery as we know it? (cost)
• Etc. (analysis)