pfSense is indeed fantastic. The best part about it is you can install it on pretty much anything, as long as you have a couple reasonably fast network interfaces and an okay-ish processor depending on the network load it will just work. Also has OpenVPN server baked in which is pretty cool
Absolutely. At work I realized that if I have paragraphs in emails most people will just read the first sentence and ignore the rest. I have resorted to breaking paragraphs in to very easy to follow bulleted lists and that seems to help a little bit.
I think the most common reason for this is that it forces people to go out of their routine/comfort zone to understand something, which many people aren’t willing to do, either consciously or subconsciously.