EDIT: you guys have dug up some truly horrible pisstakes :D Thank you for those.
To the serious folk - relax a little. This is Mildly Infuriating, not I'm dying if this doesn't stop. As a non-native speaker I was taught a certain way to use the language. The rules were not written down by me, nor the teachers - it was done by the native folk. Peace!
People thinking the English language is static and has to follow rules.
This Is English, my friend. The top dog of non-proscriptive languages where meanings change over time and reflect current usage.
Want to force everyone to follow the rules?
Start speaking French.