Complex sentence: Some argue that new errors are also introduced all the time, so that the overall accuracy rate isn't really improving; still, by encouraging people to help with correcting articles, validating content, and providing useful references, errors will eventually be eliminated.
Split into simpler sentences: Some argue that new errors are also introduced all the time, so that the overall accuracy rate isn't really improving. Nevertheless, by encouraging people to help with correcting articles, validating content, and providing useful references, errors will eventually be eliminated.