I agree with most of what you said. Lestrades is generally better with a few nuances:
* Steam bundle pages sometimes contain games that are not linked to the steam version
* Search sometimes gets confused with certain characters and it is impossible to find them. I have to use barter and link to here. Sometimes it actually tikes a bit long and becomes frustrating (although rarely).
Don't worry, I understand you don't have time to make the changes.
Features here are certainly better here, than even the steam website. Incredible on how much money they have, and certain basic features are still poor compared to the rest.
Since Barter has the user base, they can copy features from here to grow even further. It is unfair, but that's how the world works. That is why having monopolies is really bad. Companies buying/destroying smaller companies, and becoming bigger and bigger. Of course I am exaggerating here, but without some kind of incentive users don't do shit to change their habits. This happens to every individual in any part of life. Change is hard :/
In terms of community, I don't see a problem having theirs on Steam, but would be nice to have a more broader approach to support other platforms.
If I were to choose which one I'd want, I'd choose Lestrades, because it makes my life so much easier. I'm sure the issues above could be resolved swiftly.
Besides the user base from Barter would move here, as there is no other option.
As for the last point, I stopped using google long time ago when I saw they hide links on purpose, and I'm not talking just about piracy, or porn, whatever, but things that are related to freedom of speech, specially if it is something bad about them. Thus I use duckduckgo.
But in order for people to find this website, unfortunately it will have to be found by google. It seems you are in need of some SEO.
This is a point for another discussion, but people should understand that Google and certain other companies have too much power over the internet and the user.