Right, with similar failure modes. For example: people firing copypasta emails to reduce the writing cost per-application / per-message.

When I have an OKC account, my strategy is just to write the first half-funny sentence or two that come to mind, shoot off the message, and move on.

Even when I apply for jobs and write a cover letter, what do I do? A dating site message with a funny accent.

    Dear Companyboss,

    I write in reply to your advertisement of <date> in the Foobar Herald.

    I am <skills/titles>. While working at <previous employer> 
    I used <technology/skills>.

    I have included my CV and I look forward to your reply.

    Yours &c &c

Writing short messages isn't because the writers are lazy. It's a rational strategy that maximises coverage and minimises the emotional cost of being rejected after making a large investment.