I understand the frustration, I'm also frustrated from time to time, but keeping up to date is almost impossible, given that hundreds of models might be introduced or updated by manufacturers in a month. One would need to check the entire universe of codes at least on a monthly basis. It would help if manufactures would maintain a database of codes, indicate if a model had been updated, and which models share the same codes.

An annoyance for anyone maintaining a code database is the notion that a code set for an obscure model may never be used in a control system.

In many cases learning the codes is not good enough because the remote will have a power toggle while a database somewhere might have discrete power codes.