Welcome Penetrator!
Greetings! I'm fairly new here as well, but let me just say this: There are some VERY bright and intelligent people on this forum! If you have any questions or need advice, I'm sure someone here would be happy to help!
This is true, but for every bright person on this forum, there is somebody equally ignorant. There are plenty of trolls who give bad advice for a number of reasons including:
being legitimately ignorant but feeling the need to express their unfounded ideas
making feeble, probably futile, attempts to influence people to buy or sell bitcoins to move markets toward their positions (general sentiment on this forum used to have an effect on price, however, I think those days are behind us)
experiencing irrational exuberance and hyping bitcoin TO DA MOON! (although I do rationally believe bitcoin has a high probability of significant gains from today's value)
experiencing feelings of regret for selling all of their coins far too early and saying things like BITCOIN IS DOOMED.
Make sure to not take anyone here too seriously