The termcaps at tuxedo.org are being kept as historical documents, and have some problems with them.

1. A lot of the older termcap entries have been moved out of the terminfo master and into another termcap file, which could be quite a surprise if you actually use one of the dinosaurs there.
2. Some of the termcap entries have both ic and im/ei, which is a no-no according to the termcap(5) manual page.
3. The linux kb entry keeps changing from backspace to delete and visa-versa.