DislikedJack has hit the nail on the head. MT4 was released ~8 years ago, and since then it has barely changed-No new features. It's execution time is painfully slow (compare it to any broker who offers API) and we all know what types of brokers Metaquotes designed this software for...
Yes, 7 years later it can be manipulated every which way, and you can make add ons for it to do pretty much anything, but it doesn't change the fact that the software is outdated and junk. If I want one-click trading (might as well be a necessity), I have to add some...Ignored
Well, I wouldn't go that far... we won't be seeing the end of MetaQuotes anytime soon. Given the user base that uses it, MT4 will remain an option for traders for a long time coming.
MT5 has some improvements, and I heard a rumor that they are developing MT6 as we speak to be backwards compatible with MQL4 code.
I'm not holding my breath for the next best thing since sliced bread though..