My tip for new youtubers or just new people to the 'hideout would be:
Do lots of research before you post a video or a thread.
People will jump on you so hard if anything is questionable. If you want to avoid that, then do a ton on research. Credit the sources, as well, so that skeptics can't question you without questioning your source first.
A lot of youtubers post videos for care or health that are incorrect or highly controversial. So if you want to post information that you assume people might use, back it up, eh? Research is the key to credibility. You can have all the experience in the world, but if someone cannot replicate your findings... what do you have?
Do not make assumptions about your subscribers and their information base. Assume they are not on hamster hideout. Therefore, being very clear about the terms you use, and the sources you got your information from are KEY to success.
Other tips...
Don't get caught up in preaching but not upholding to what you say: Don't post about how you don't have space for adequate cages, but then blast others for not getting minimum cage dimensions. Don't say you know about the dangers of breeding, but then accidentally have a litter. Don't say you know about the BEST food for hamsters but then post videos of outrageous treats or foods you feed that are not recommended. Don't warn against new hamster owners and how much it costs if you yourself are unable to provide what you say others should. Get what I'm saying? People LOOK for flaws, so don't have any. And if you have flaws, we all do, don't highlight them by blasting others for theirs. If you point out a flaw, they will come looking for yours 
In all, pre-empt people from accusing you of bad ownership. If you never show the cages your hamsters live in, but you constantly preach about how people need a certain type of cage or adhere to a minimum dimensions, how could you defend against people saying "well hey, You say we need this type of cage, but we never see YOURS...."
Think of any possible argument against your video and guard against it. If you do not have the minimum, then don't talk about minimums. If you don't have the right food, then probably best not to advise people on food. eh?
Edited by tinypixie, 25 June 2013 - 02:10 PM.