Actually, context given; It takes away from your perspective because of your experiences, and takes no value from what was written. I do live around Yosemite, all things set aside, it remains as it was stated. The fact that it seems to alter your perception reflects more on you than what was said. Simple thing really, and not a big deal at all- but in terms of linear conversation... I presented something relevant to an ongoing conversation that was then responded to by something completely irrelevant to anything other than the posters perspective for example....
Had two friends been discussing carrots 5 years ago on a public forum.... and a third party interjected 5 years later that they had eaten carrots the same way.... and again another third party said "that was 5 years ago" - No value had been detracted from the actual statements, only a non linear and non relevant comment was made on the time frame of the conversations.
Point in fact- 5 years ago I used the gunner sites on my saws only a smidgen more than I do now, which is rarely. Reading the over all circumstances of weight distribution, wood condition and type, wind/weather aspects, falling area, and available options in terms of types of cuts used and control methods used (snatch blocks, wedges etc.) are all variables that I consider before I make a cut, and the experience of using chainsaws has helped me determine the viability of my cuts much more than a guiding line on a saw. All of this being said it is still a useful tool that I am grateful to have available to use.