and when you think about it, Mudcat itself is a 'form' of an editable database. Though not as direct as a Wiki, we are constantly getting new information, both about music as well as diverse other things. The big difference is that all the changes 'usually' remain, so one can follow the process and debate....but in the end, it is usually possible to sort out authorship of songs, most common lyrics, meanings of phrases...etc.
   Obviously, some topics have no one 'right' answer, but it is possible to read some strong defenses by committed exponents of viewpoints.
   I don't mean to belabor the comparison, but only to suggest that, with a little effort, it IS possible to sort out better data from dubious data because knowledgeable people are always chiming in with updates and clarifications.

Neither Wikipedia nor Mudcat & its song database should be taken as 'revealed truth', but over time, both tend towards accuracy, simply because of the Delphic principle of better answers arising from many inputs.