I do assume a strong correlation between post and user quality but I don't have proof.
Also I totally ignored topic context.
post quality can be quantified somehow
Looking at just one post without context? I guess it would be less cpu time?
look for some research
After reading your post I did pose a few questions to ai chat with possibly interesting results. Queries (in order, with typos, and ai chat answers between each query):
- quantify post quality of a forum post
- specifically site is bitcointalk.org
- indicate which of these an be measured with low computational cost
- rearrange the low cost metrics from best to worst
- adjust for the fact that accounts can be bought and sold
- adjust to the fact that users may get paid for posting
- same analisys for comments vs opening posts
- which are most usefule without taking context from other posts
Offtopic, I hope you appreciate getting more questions instead of more answers. I do believe asking the right questions is more helpful to start your research. I can't vouch for the quality of ai answers, just that it looked interesting. I'm not a programmer, but it does offer to write your code as well.