User Guide Translations?

The truth is that is hard keep translations up to date and with a good quality control, but is this a reason for not to do it? Is better just keep the developers that don't speaks English without that support, or to do our better trying hard, trusting each others and saying "well, that's the better that we can offer to you at this moment, may be imprecise, but you can see the original documentation if you do prefer"?

Have you ever seen about peoples doing something together, trusting each others, without any gain with it? It sounds like the core of the open source thinking, right?