Complex sentence: Given my experience with AfD, I therefore concentrate more on those discussions that are a bit more contentious and may not result in a straightforward "keep", so many of my closures have been "merge" or "redirect".
Split into simpler sentences: Given my experience with AfD, I therefore concentrate more on those discussions that are a bit more contentious and may not result in a straightforward "keep". Many of my closures have been "merge" or "redirect".