We have a lot of videos on Youtube that are so poorly made, but still have a lot of good information. One I think about in particular, is on yeast harvesting and re-pitching into a fermenter using a bucket and ladle. Man, talk about opening up the floodgates with folks telling me about possible infection exposure, etc. I will say however doing it this simple way, we have never had that problem.
Those people should watch videos from british breweries collecting yeast from Yorkshire square fermenters and pouring it from buckets to next batch.