I disagree. My position is not that English is bad (English has some advantages here and there, but it is hardly the best language I know), it is very practical - and necessary - to learn if you want to work in IT. No doubt about it.
However, confining ourselves to one language makes us all think the same way. Research has proven time and time again, that learning other languages will help us apply different ways to think about problems, because different languages uses different grammar to convey the same meaning.
Effectively, if we continue to strive to eradicate localised IT and software related words from non-English languages and replace them with English words instead, language development will stagnate and all languages will eventually become English. And that is not a positive prospect.
I don't need Github localised, but I would like to localise it for the purpose of creating technical terms in my own language. I fear that most of the localisation into Danish would simply be English words instead, despite the fact that Danish actually has words for 'push' and 'pull' (»puf« and »hal«, respectively).
And English shouldn't be so cocky either, by its current usage, English is slowly becoming less than a language and more of a tool. And with both foreign and native speakers' continue abuse of the language, English will soon be derived of all its beauty, for the purpose of minimising communication.
Are we really that lazy?