I am going to tread somewhat lightly here, but at the same time try to give some feedback that may help, more of the outside looking in type.
1. Merging with another forum is going to require compromise, unless you are acquiring it. It is also going to require consistency in vision, direction and implementation. Not saying that isn't doable.
2. I have had the pleasure of seeing both the great side of working in teamwork with you, but I also have seen some of the trials as well. I think via life experience and growth, I think you are more ready today to tackle some of the delegation and trust of allowing others to assist. I also think others might have a better understanding today of your personality and expectations after a couple years of observation. But it is still going to require patience.
3. Other sites might have some return expectations vs for the love of the subject and conversation.
4. Is bigger really "gooder"? I guess it comes down to where the ultimate target for the site is? I know at one time you wished to have articles and more exclusive content. My opinion, there is a ton of original and valuable content here already, it is just chopped up into bits and pieces within threads. Articles, good articles take time and energy to develop, construct and relay quality. I think most here us this as an escape from the work of life.. committing to articles is somewhat defeating.
Another thing I notice here, the short posts generally outperform the larger posts with more content and complete thoughts. Example would be Wade's completeness in thoughts.. how many people really read the content thoroughly verse the concise posts of a single line or two? At times there were some very good articles on the site.. but got very little interaction. So to the writer, the question is why bother? Over the years I have played with both opening posts and rebuttals within the threads.. more content is often bypassed whereas the more one sided posts generate responses in support or rebuttal.
I guess what I am saying, is this venue here is a good start to define what the user base truly wants to help shape the ultimate direction. What is really going to spur activity? Over the past 5 years, I can say a "villain" or two on the boards truly sparks conversation. But it also sparks drama and pettiness... so there has to be a balance of some sort.
5. Most people here truly want you and the site to succeed.. sometimes it is lost in jest, emotion or inconsistency. But the root is most of the members here want this to continue to be a positive and fun place to converse.
I have to run.. but that is a start of thoughts... take them for what they are worth.
"The oranges are dry; the apples are mealy; and the papayas... I don't know what's going on with the papayas!"