感谢薯条大佬提供的方法：

近日有网友发现
BiliBili 的视频（格式）广告内容也来自一些特殊的官方工作账号
此类账号具有以下特征：
1. 英文数字账号
2. 0 级小号
3. 投稿视频数量几千到几十万不等
4. 用户主页不显示任何投稿内容和动态

通过将这些官方广告工作账号加入黑名单即可屏蔽大量贴片广告、切后台广告，缓解开屏广告/视频广告等

目前已知广告工作账号列表如下：

https://space.bilibili.com/1042653845
https://space.bilibili.com/1055149070
https://space.bilibili.com/1064488621 （主要）
https://space.bilibili.com/1075400468
https://space.bilibili.com/1148923121
https://space.bilibili.com/1152997930
https://space.bilibili.com/1188004959
https://space.bilibili.com/1208114979
https://space.bilibili.com/1227735707
https://space.bilibili.com/1252039983
https://space.bilibili.com/1257852431
https://space.bilibili.com/1284878163
https://space.bilibili.com/1296541829
https://space.bilibili.com/1302669433
https://space.bilibili.com/1303123946
https://space.bilibili.com/1346091659
https://space.bilibili.com/1356882480 （主要）
https://space.bilibili.com/1430439192
https://space.bilibili.com/1577437924
https://space.bilibili.com/1627242161
https://space.bilibili.com/1630491103
https://space.bilibili.com/1642531925
https://space.bilibili.com/1655279349
https://space.bilibili.com/1714908508
https://space.bilibili.com/1720634591
https://space.bilibili.com/1734012280
https://space.bilibili.com/1743345026
https://space.bilibili.com/1798118517
https://space.bilibili.com/1806922031
https://space.bilibili.com/1817661914
https://space.bilibili.com/1826766269
https://space.bilibili.com/1859459400
https://space.bilibili.com/1919627194
https://space.bilibili.com/1919873485
https://space.bilibili.com/1926952280
https://space.bilibili.com/1956866386
https://space.bilibili.com/1957313739 (pdd)
https://space.bilibili.com/1987938455 （主要）
https://space.bilibili.com/1992873935
https://space.bilibili.com/2024349971
https://space.bilibili.com/2067273601
https://space.bilibili.com/2072500476
https://space.bilibili.com/2101682498
https://space.bilibili.com/2103756604 （主要）
https://space.bilibili.com/2115931056
https://space.bilibili.com/2118239887
https://space.bilibili.com/2126699792

如何找到更多广告工作账号？

G哥 搜索输入⬇️
site:bilibili.com intitle:别家素材
搜索结果都是广告视频及其账号

延伸阅读：

https://www.zhihu.com/question/640923460/answer/1968440919704438741

薯条大佬的赞助链接：

https://afdian.com/a/HashBrown