Here is the Top comment, and the comment with most karma points in the last hour, in the daily threads of 4 different subreddit (at time of publication):
r/bitcoinmarkets Top comment, most pts in last hour
r/ethfinance Top comment, most karma points in last hour

r/bitcoin Top comment, most karma points in last hour

r/cryptocurrency Top comment, most karma points in last hour

Considering counter-sentiment theory (where positivity may suggest downward trend and negatively a upward trend), these could be used as input for determining the price trend of crypto markets. You can ask yourself if they are bullish in sentiment, an how bullish, or if they express a mood or attitude.

It may help for the short to medium term time-frame. Outside of that, it may be good to get input from other information sources or insights.