I've got over 50 Categories on my WP blog. I want to cut that down to like 12. How do I do this though? Is there any way to tell the SEs that I have moved them? Or am I going to lose all my traffic? I see this plugin here looks nice: Batch Categories. But it doensn't say anything about the risk of performing such a change. What would you do? I could do a collapse... But I really just want to narrow it down to 12 categories.