Given the amount of "s/fo/foo/" you can see in channels it would be great if typos could be highlighted in the input line, so one has a chance to fix them before sending. Optionally Konversation should query if the input should be sent as-is, if there are unknown words, allowing to either correct the input or just send. The dictionary used should be choosable per channel, so e.g. one can have the french dictionary for #kde-fr and the english for #kde. Possibly there could be also autocorrection. Reproducible: Always
Every KDE text input field offers automatic spell-checking via the context menu, including Konversation's input line (additionally, the git master version of Konversation augments the standard KTextEdit context menu with persistent per-tab spell-checking language selection).