Did you hear the one about the guy who went onto Wikipedia and    deleted 47,000 instances of the phrase comprised of?  
    Oh, dear. I hope youre not waiting for a punch line, because    thats the whole story: A guy went onto Wikipedia and deleted    47,000 comprised ofs, replacing each with composed of or    some other alternative. Its one of those stories in which the    setup is the punch line. Theres just nothing funnier that you    could add.  
    The guy is 51-year-old software engineer Bryan Henderson, one    of countless thousands of people who take it upon themselves to    click the edit button on entries in the online free-for-all     in both senses of the term  encyclopedia.  
    Henderson began scrubbing Wikipedia of comprised of in 2007,    using a program he wrote to find the phrase, yet fixing each    instance manually.  
    Thats his sole mission. Henderson doesnt bother with other    errors, really. Just comprised of. And before you leap to any    of the obvious criticisms , you might want to read the    6,000-word entry Henderson created to explain his crusade  a    screed in which hes already blasted pretty much any response    you or I might have.  
    Want to argue with him that comprised of isnt technically an    error? Hes way ahead of you, using carefully chosen language    to describe the problem as poor phrasing and the like.  
    Want to argue that his efforts are pointless? Youd have a    point. Throughout history, pretty much every attempt to force    change upon the English language has failed. But to Henderson    thats moot.  
    The arguments for leaving comprised of alone often point out    that my edits will not erase the phrase from the language, make    people stop using it, or prevent its eventual evolution into    undisputed correct English, Henderson wrote. I agree with all    of that, and I don't see how it makes a difference. Those    things have never been goals of mine.  
    Want to argue that hes wasting his time? Another good point.    But again, hes way ahead of you. An individual editor's    allocation of his time shouldn't be anyone else's concern.  
    So all we can do is shrug and be grateful we have friends, TVs    and stimulating hobbies like leaving Wikipedia entries just as    they are. That and maybe turn the whole situation into an    opportunity to learn about compose and comprise.  
Read more:
A Word, Please: An editor's effort to correct a pet peeve