Say what you want to about Sherdog; it may have an abundance of trolls, pseudo-intellectuals, and wannabe philosophizers. But at least Sherdog's central theme is, the anonymous exchanging of ideas, opinions, info, etc. Contrast that to the central theme of FB, being that unabashed self-indulgence, and it's pretty clear, IMO, there are some significant differences. Both can be fun, and actually have a valuable function in society, but at least one attempts to keep the focal point on ideas, vs simply on people admiring themselves.