The original tweet can be seen at https://web.archive.org/web/20211119123038/https://twitter.c...
It's hard to tell, but it sounds like the user had a question about how to use the `-E` flag.
Directing them to https://curl.se/gethelp.html seems... reasonable? The first link on that URL is to the curl-users mailing list, which seems like a reasonable venue for such a question.