I just wish new growers would concentrate their efforts on learning how to grow healthy good yielding plants - that would be far more time effective than worrying about 'topping' 'fiming', 'pruning' and LST which are more advanced grower techniques for maximising yields from typically low yielding strains.
If you're already growing a reasonably high yielding strain, why should you concern yourself with trying to squeeze out every last drop of yield when your time would be far better spent trying to understand the basics and mechanics of growing healthy plants indoors under light - that's where your yields will come from - not from messing about with pruning plants when you simply do not understand what you're doing.
This is precisely why you're getting contradictory advice from the GrowFAQ - this is an advanced grower topic and subject, and you simply do not have the basic grower knowledge to truly understand when, why and what strains to top/fim/prune or lst.
It can sometimes take 3, 4, 5 or more times growing the same strain to truly understand the strain and the plants and what growing techniques work well for them and what doesn't - and that's the time to experiment with different techniques to find the best way of growing those particular plants. Not all strains will like to be topped or fim'd as Fdd mentions - it's up to you as a grower to experiment with the strains you're growing and find out what works best for them - but if you're growing a strain for the first time or it's the first grow you've done - that is not the time to experiment, that comes later.
Concentrate your efforts on growing out healthy plants to harvest with as few basic mistakes and errors as possible - that will give you the maximum yield for those particular plants - after you have a benchmark to work from - you can experiment.
Now, I realise they'll be quite a few people who don't agree with me on this - that's fine, we all have different perspectives on things, but in my opinion, new growers need to learn how to grow healthy plants first - then move on to more advanced techniques - far too many new growers here try to run before they can walk, and don't get the best results because of it.