Random capital letters

[coffeetasteslikeshit]

Hello, this is my first first to pedants' corner and I have a question that you may be able to answer: What is it with the rise in the number of people putting random capital letters in their sentences?

I'm asking because I just received a marketing email which contained this line:

"... get yourself aligned to more happiness, money and flow in every area of your life in Just 15 minutes For 15 Days ... !

This programme is usually £198 but It’s Free to you for 2 weeks Only !"

I thought about pasting the entire email, but it would probably cause so much pedant rage than MN would explode (implode?).

I'm guilty of this, I'm .
Also could be typos though.

It's not grammatical, but it's good for marketing apparently. Highlighting the offers. Annoying, but I'm encouraged to do it when writing advertising stuff although it makes my teeth itch

It has a long history in written English so I wouldn't argue with it in a marketing email, I would in an essay though.

Does it FaFoutis? That's interesting, do you have any other info about it's historical use? Did it die out? Or have I just completely missed it before and only just started to notice it?!

It could be unintentional. My iPhone does this all the time-it is incredible annoying. Whenever I type guinea pig it "corrects" it to Guinea pig and it takes three goes to change.

Some people do appear to think it can be used for emphasis. I'm not a fan at all.

It died out. I read a lot of old texts for work (history lecturer), I have noticed it from the late C16th onwards. Nouns were sometimes capitalised in the C17th, there were a lot of fairly random capitals in the C18th - generally any word that was felt to be important. In the C19th there's a lot of it in religious tracts and journals. As far as I can see it started dying out mid-C19th and was mostly gone by the start of the C20th, but I might be wrong. It isn't my specialist subject!!

Seems very old-fashioned. Not sure about marketing use but important nouns used to be capitalised. This gradually fell out of fashion and now the fashion is for minimal caps. Which is A Good Thing, I think.

Random capitals in the middle of words annoy me a lot more. You'd be surprised by the number of kids who write D P R in the middle of words.