I have been using since the beta, truly the most impressive product released in the last 5 years (along with chatgpt). The amount of indexed code, the quickness and the precision of this search is simply stunning.
Could you elaborate more on why this is a significant feature? I can see how it would be handy to search a codebase online, especially one you don't have cloned locally, but for my own codebases, I can search the entire thing just fine in VS Code with ctrl-shft-f.
Searching for non-documented or badly documented API, find implementation of an algorithm or specific pattern, find how people are using a niche tool, etc.
I have even used it to find my own API in the wild to look for potential breaking changes and improvements to do.