I didn't mention konsole in the great applications, even though i use it daily. It is (imho) a very good application, just borked by the great idea
to put all konsole shells in only task, so that any problem with one konsole tab will kill all your tabs. Yes, this is still valid, check current konsole code. More or less the same way
they do with plasma so that any badly written plasmoid will kill your whole plasma (that is, if plasma doesn't kill itself before). And believe me, there are some very badly written plasmoid.