I'm not arguing quality of components, anyone though can take the absolute highest quality components made and put together mobos, but if the quality control and checking isn't there you are much more likely to have complete or partial failure of the mobo, some people can live with, some there are work arounds, and others are just go through the repair or RMA process or junk it, as in part, a builder, I don't care to take these chances, if a rig I build fails, I stand behind it, if a total failure most components are easily replaceable, mobos are a different story, and generally extremely time consuming, I generally provide a l;oaner system till all is sorted out, but there's cost that play in for shipping, time is often a factor as mobos can take a month or more, there's complete teardown and rebuild, etc, so why would one take a chance with iffy components.
When people ask for help and opinions, I provide my my thoughts, and again, those are based on hands on experience, while I have no idea of your experience, but would guess you to be in your mid 20's or younger, just guessing but of those I've employed and taught systems to that (my perception) is the age age group that takes much higher interest in all the actual components that go into the making of mobos, so if I'm right then would congratulate you on building a great foundation for success.
Also as mentioned, while it's nice to look good on paper, spec wise, and was far superior at the same price point, one would think sales to be at least comparable, yet the Pro outsells the MPower about 3 to one, while being more expensive, the Hero out sales it but even a much higher margin, think over 7 to 1, and again, higher priced...so to that end the people are speaking. I also take input from many other builders and IT pros I network with, almost to a person they also shun MSI mobos....
As far as OCing, Asus went to town at Computex recently (as did GSkill, another manufacturer I favor) setting world records. Anyway, can't figure where you come up with Guerrilla marketing, unless you think there's some grand conspiracy by Asus, the Rock and GB to use a single person to drive people away from MSI as I endorse all three openly, and as mentioned I've pretty much used GSkill as my primary DRAM source, and lets see HDs i lean mainly towards WD, but SeaGate is right there also, and hmmm, GPUs, EVGA and Asus for nVidia cards (prefer their cooling designs, though I also use other brands as well) and on the AMD side prefer Gigabyte and Asus (for same cooling reasons), PSUs, I'm rather open I look to SeaSonic first, though their are many others I use, including some that are shunned by others who continue to look at the old, old tier rankings, CPU coolers, lean towards cooler master, and also use a fair number of Phanteks, and Noctua........if anything as far as Guerrilla marketing goes, it might be that I'm not partial to basically any LC single loop options, but that's not true either I just haven't really found a need for it...so I'm not anti and particular LC component, I don't use any of them ......