People who downvoted me obviously never had to deal with documents that you have to process with TeXLive greater than something, and then only with particular fonts properly installed in the system (ever tried to install an OTF font? ever seen UTF-8 or ISO-8859-2 character encoding in a document?). Not to mention obsolete versions of packages that the author had on his system.

Well, I did have to deal with such documents, hence my comment. It was an informed rant.