Happy Birthday ,
Here is my thoughts on this , it is a very 2 sided coin .
On the LOC we are a smaller community than CL so it does not have as much traffic.
Thus most people head to CL first and are always trying to sell their wares.
It is unfortunate but it has to be a blanket policy to advise on no solicitation as everyone it trying to get it for free.
I had some parts a few years ago to sell and it indeed looked like i was trying to sell it as a buisness , it just happened i only had 3 sets and had to buy in bulk for me to get them. I can't even remember what it was but i was advised of the same policy and it made sense.
Remeber it is not a personal thing against you as you are great at these projects such as the retros .
It is also easier to swallow if you just post a DIY write up and anyone who wants you to do it just asks and you are usually good then.
I don't think you are trying to make a buisness out of it ,and if you were it probably couldn't make enough to buy 1 more set of projectors :) .
So again you can't blame them or even us for stoping anything that sounds like soliciting as it has been spoiled by years of free loaders looking for ways to say "well he can do it for free or that way".