IMO your comments on warranty being voided are alarming to those who are uninformed. Have there been any vendor refusals of warranting a cpu due to an after market cooler that was installed PROPERLY ? I think not but maybe I am wrong.
I agree with providing all the information but a better way of putting it might be to caution the newbie builder to be careful to properly install the cooler !
Please note how this side topic started when I simply said,
Also note that using an aftermarket cooler on an Intel or AMD CPU violates the terms of the CPU warranty. That is typically not a concern for most gamers, but something everyone should be aware of.
Now really, was that an alarming statement?
As I noted in another discussion, as a shop owner attempting to get an RMA for customers, I have been refused - by both AMD and Intel. It is a rare occasion, but it has happened. And as it happened, it was noted to me the registered owners of these CPUs had a history of getting RMAs for CPUs.
99 out of 100 times, if you are upfront with AMD and Intel and tell them the whole truth, they will replace the CPU - because they want your repeat business.
But note I said if you are upfront with them when seeking the RMA. Understand that withholding pertinent information when attempting to receive a product or service is
deception for personal gain or profit - the definition of "fraud", a
criminal offense with significant circumstances, including jail time and fines. Now that IS alarming, right?
So because the circumstances are real, and very severe, as technical advisors, I think "raising the alarm" is not only appropriate, but the right thing to do. You have the right, after all, to ignore it if you wish. But ignorance of the law is no excuse in the eyes of the law.