I became involved in Wiki editing in February 2014.
Any editing I do tends to be confined to checking quotations and footnotes and correcting grammar, syntax, punctuation, spelling and formatting errors in any Wiki article I happen to be reading, i.e. copy-editing.
Rather dull, but believe me, there is plenty of scope for this kind of editing in Wikipedia!
Note: High edit count in Islamic State of Iraq and the Levant comes mainly from copy-edits, not contributory edits.