I take offense when people use the Internet as the poster-child for bad genealogical practice. Genealogy would not be enjoying the popularity it now has if not for the Internet. The real issue is that a genealogist must assess the validity of information he or she obtains, whether online, from print, or from word of mouth. A transcription is a transcription regardless of the medium by which it is conveyed. The amount of genealogical material in print still exceeds that appearing online.
Online databases are indeed very convenient.
Online databases don't turn us into bad genealogists. Bad genealogical practice is a product of inexperience and lack of discipline. Of course there is. But not any more so than in print. As I said before, there is still more information found in print.