There is no justification to ridicule the observations of chemtrails. This shows only that you are not informed. There are serious efforts in the scientific communities that are outspoken about these observations coinciding with extremely alarming levels of toxic heavy metals in rain water and soil over the recent years. It is far beyond just internet/youtube speculation, as you seem to believe.
Of course there are several likely unintelligent views among the skeptic public, like believing passenger commercial airlines are part of these activities, and of course some contrails are being mistaken for chemtrails. But if you discard the whole theory based on such opinions, you are no better knowledged yourself.
See for example a news report from German RTL: Germany admitted chemtrail operations in 2007:
It is also clear references to military operations by TV weather reporters:
Before you laugh off people's concerns about chemtrail, how much have you actually researched to understand if there are historic references and motives for such activity?
How many hours have you spent researching "
Geoengineering" and it's history?
Have you seen the film "What in the world are they spraying?"
How many officially admitted historic events on toxic experimentation on large number of the public are you aware of, commited by the US and other nations during the last 100 or even 50 years?
Have you read the 1996 report by USAF Center for Strategy & Technology: "Owning the Weather in 2025"?
One quote: "In the United States, weather-modification will likely become a part of national security policy with both domestic and international applications. Our government will pursue such a policy, depending on its interests, at various levels. These levels could include unilateral actions, participation in a security framework such as NATO, membership in an international organization such as the UN, or participation in a coalition."
Though military application of weather modification is much older than that. i.e. Operation Popeye 1967.
Yet, US Air Force claims:
"Is not conducting any weather modification experiments or programs and has no plans to do so in the future"
"There is no such thing as a "Chemtrail""
This is just a fraction of pieces you should be aware of. If you only believe what is actually admitted by the various governments or media, then you have not read much history, other than the books they gave you in school. But you WILL find comfort of the majority. Cause the majority of people are just as poorly informed as yourself.
To call people nut-jobs based on inadequate knowledge is quite common. And specially here on the forum, where many of you have a profile and image to protect, I doubt anyone has the courage to go against the "forum consensus", although some try in a half-baked ironic fashion, to protect themselves while feeling for support. Well, that's just plain cowardliness. So you will grow old until you finally understand what is going on.
These things go much deeper than just a military purpose. But you will not bother to find out, so better just turn on the TV to feed you the daily dose of truth.
---------------------------
All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident. - Arthur Schopenhauer