From my estimates that subreddit is almost certainly not representative of UCSC. Police raid on the protest had like ~200 arrests, my roommate got arrested, suspended, and now can't take his finals, police are driving around campus constantly, and people are STILL going to the protest. There's ~20000 students, so that's about 1% of the entire student population arrested. And those were the most dedicated people camping there at like 3am when the police came. Estimate the percentage of the entire population that's pro-Palestine compared to the proportion of anti-Palestine posts on the subreddit. I would guess that people not from UCSC are posting a lot of those.
It's probably fake news