Chrome extension author's extension count
Here are the extension count break down across 115,002 authors in Chrome Web Store. A publisher can use any name without verification from Chrome Web Store, so it is possible for a publisher to impersonate another publisher!
The vast majority of Chrome Web Store publishers have only 1 extension, but 1,225 (1.07%) publishers have 10+ extensions. 7 publishers even published 1000+ extensions - most of which are themes / new tabs.
AdBlock — best ad blocker
Adblock Plus - free ad blocker
Adblock for Youtube™
Dr.eye Embedded Translation Plugin
Urban Life HD Live Wallpapers New Tab Theme
Google Keep Chrome Extension
Video Downloader professional
vidIQ Vision for YouTube