One of the inherent problems with public forums is that anyone can claim to be anything, and distribute all kinds of bad advice to unknowing persons. I've seen many posts that were outright dangerous in what they told people to do, and I'm sure the posters had never done these acts themselves.
Take what you read on these forums with a grain of salt and always check with known references, usually printed manuals in the case of reloading. Data is thrown around on forums like confetti, and you don't know if the person posting it is drunk when they posted, malicious, or just doesn't know, but thinks they do.
On the other hand, there are people who are more than willing to share their actual experiences with those who are just learning. I count myself in this group. You won't see me posting loading data in most cases, since it's so easy to mis-type, transpose, forget, etc. There are ample loading manuals available in printed form, where all the loads have actually been tested in ballistic labs, so there's no need for me to be throwing what I use into the mix.
Sift through the postings and you'll see things that will help you attain the knowledge you desire. You'll also see some pure tripe, so be sure to look for backup data before you attempt some of these things.
Hope this helps.
Fred