lol you should see how bad it is nowadays. Like 90% of my traffic is from SE Asia or germany trying to scrape my site. I blocked like a dozen countries because of it. Singapore itself is an insane amount of traffic for me.
Singapore could be due to being a common VPN exit node for within SE Asia? Close by and avoids the most common regional blacklists (and gov firewalls of course).
I think it's due to Tencent Cloud providing cheap servers in Singapore. I had the same issue and blocked all of their offending IP ranges from these ASNs and it was all Tencent or Huawei Cloud.
