Early RenPy days:
Small community but many works were praised. Bad art but good design choices for such games were praised. Any highly recommended game was often incomplete/short but clearly diverse in artwork/quality and concept. Pay OELVN = not "good" OELVN but OELVN with designs that are exclusive. Exclusive English Princess Maker. Exclusive Battle Rpg/VN. Exclusive Graphic Novel/VN.
The bad: Little to no one payed attention. Those who tried to share had little audience. Forums was needed to know the polished RenPy. Many limitations were excusable.
Modern RenPy days:
Many posts both inside and outside recommend "1st time" high quality OELVNs.
Almost all of these OELVNS while punished and obviously took a load of work to do were all of the same art style/general story theme.
Nearly impossible to hear new OELVNS. Top names are Christine Love, Winter Wolves, Alistair++ and Katawa Shoujo.
Even Hanako Games are not as well mentioned though Cute Knight will always be THE english Princess Maker.
The good: Popular gaming blogs talk about the games.
The bad:
The tutorial has only slightly improved. Many old forum tutorials are still forum topics (or have disappeared) and not part of the official tutorial.
Expectations for OELVNs have risen but also saturated. Despite only having a few top titles, said titles constantly get repeated. New users wanting more diversity are forced to wade through such titles unless they extremely monitor the OELVN news. In mainstream blog comments, if top quality OELVN does not satisfy, most recommend Japanese->English VNs and treating both OELVN and professional Japanese VN as equals.
Database conversations/spreading the awareness for OELVNs have died. Everyone seems satisfied with the still general and old looking renpy games list. Either that or no one is motivated to change how the database lists such games except for blog review sites. Conversations of "posters (?)" became a "featured game" in the main site. No idea of the original context of "posters" just spotted some old topics.
Culture creep has started to enter into the general OELVN audience. What used to be open ended is now something along the lines of: Christine Love fans/Christine Love critics overriding most conversations & criticisms about OELVN. Winter Wolves became the most innovative "main" OELVN replacing the old spot by Hanako games creating another sub-group solely focused on Winter Wolves type of hybrid hardcore gaming "on top of" VNs. The last vocal group (within the considerations of what is vocal for a small OELVN community) are the ones who believe the Katawa Shoujo VNs are the only worthwhile OELVNs. Conversations about the "poetry" behind each VN has seemingly died. Story threads "disappear" once a VN gets released.
Finally...
Hierarchy has disappeared:
(For games) What is "good OELVN" rather than "good VN"? Very rarely talked about anymore. Where does Moonlight Walks rank against the modern top mentioned VNs? No longer important. "Moonlight Walks", the most well known early top quality VN, simply *disappears* except in the memories of hardcore OELVN posters who remembers.
(For the engine) Sorry not a program but surprised that there's "no in-between" yet between Novelty and RenPy. Many of the programmer focus appears to be on the portability. RenPy has also lost much of the balance on the "Ren" side. Though programming and artistry was pervasive even in the past, there was still a question of how to encourage diversity and praise every little element of a product. Today it appears to be more of a "PyGame alternative" for producing VNs. Christine Love works have become 75% of the "Ren" and Katawa Shoujo completes the other "25%" (though it usually makes up for this with the view that it is the best polished and executed OELVN thus far).
(For the genre as a whole) Even the forums have no "pack" that contain the classics. No "pack" for when someone wants to easily immersed in different genres. OELVN trend then ends up being a slave to the general professional pop VNs siding mostly towards Mystery and Sci-Fi because that is what the most popular VNs are being done as so the top quality OELVNs tend to also be following that trend.
Even the database created and continues the self-fulfilling policy with this:
By Genre
Mystery
Parody