Let me preface my answer by stating outright that the entire "question" comes across quite a bit like a "troll" posting. Lots of ambiguous criticisms with very little "meat" in the post.
The majority of people participated in the definition and commitment (2013) have been long gone from NE for good reasons.
This is rather ambiguous and unhelpful. What would you propose those reasons are? Life/family changes? Job changes? A change in interests? If so, then I could agree those are probably good reasons to no longer participate in an online community.
People come and go to many online communities for many reasons, and most of them would consider their own reasons to be good reasons.
Most questions that did not get closed are trivial vendor specific questions, questions that can be answered by LMGTFY
First, this is pure speculation on your part. I would be interested in actual statistics to back this up.
Second, most online communities are filled with the same types of questions. People go where they feel comfortable and feel they will get a good answer to their question. Is that a bad thing for people to feel like they may get good answers here?
Is it bad that they feel the quality of the answers will be higher here than from "random" results from a Google search?
Quite a few questions [example] are edited (by the same people) in a very unprofessional (or grossly disrespectful) manner
Perhaps a quick viewing of the deleted comments can shed some light on this edit:
Indeed it does. The OP asked an off topic question on NE, it got closed, OP argued about it being on topic, it was suggested that discussion/question should be asked on meta and the OP copied the same question from NE to meta. A moderator (at the time) edited the question to fit with what was suggested.
I won't argue whether the edit could have been better, but the edit is clearly more in line with what the OP should have asked on meta rather than simply repeat his off topic question on meta.
Also, just for reference, let's take a look at the comments from the OP's closed question to see how this was handled by this "unprofessional (or grossly disrespectful)" individual:
Hmmm. Seems like this individual tried to be helpful by providing at least a partial answer to an off topic question and a pointer to meta (an unknown resource to the OP).
The activity at NE is mostly from 1) home networking questions 2) the few nazis satisfying their ego 3) people too lazy to go to the right place to ask the questions and expecting NE to be a catch-all (me included).
Again, this seems to be pure speculation on your part and I would prefer actual statistics.
Sure, we get lots of home networking questions. We have had this discussion before and we always knew it was going to happen. People see the "network" part of the site and most don't take the time to read the FAQs before posting. Again this is not uncommon on most online communities.
The "nazis" comment is entirely uncalled for and in itself is more unprofessional and disrespectful than the actions of the individual you accused above. Please keep in mind that this term is grossly offensive to many people globally.
Finally, where is the "right place" to ask questions online? Could you provide me a directory that would indicate where the "right place" is for my next question so that I am not perceived as "too lazy" to go there?
I didn't entirely give up on NE as my name was somehow still on NE area51 commitment page and I invited people here before open beta. Now I am actually ashamed to wear the NE shirt because of what NE has turned into.
In short, don't waste your time on NE.
You are certainly entitled to your opinion. As someone else who was part of this since before closed beta, I guess I just don't understand what you think is so drastically different than what was proposed on Area51.
However, since you have been here so long, then if there really is a problem, the fault lies with you as much as anyone else. The community has helped to define this site and if you chose to not participate in shaping it, we can't help that.
I would not be surprised if this post gets closed/hijacked by editing.
Yet another accusation without providing any real basis. If it is deleted, I would suspect that is is more inline with how little merit the post actually contains that brings this full circle to my "troll" post comment I opened with.