Today I see that AdBlock detected 1k+ ads on Baidu.com???
I think it is a bug, because when I restarted my browser, it turns into only 3 ads.
Those may not be ads. The counter on the AdBlock icon shows all page resources that are blocked by the filter lists you're subscribed to. If you're subscribed to EasyPrivacy, for instance, trackers are blocked, not just ads. Also, some sites keep trying to download a resource AdBlock keeps blocking, and that can inflate the count by huge amounts.
You can use AdBlock's resource page to see what AdBlock is blocking and hiding and which filter lists are doing it. Here's how: https://help.getadblock.com/solution/articles/6000087883-how-can-i-see-what-adblock-is-blocking-hiding-and-whitelisting-
AdBlock Community Manager