You cannot expect everyone to speak about technologies of bitcoin, Previously there were only users who were attracted by bitcoin technology but now there are many more who uses bitcoin just for its value. So don't expect everyone to speak about bitcoin, transaction, wallet, blockchain.

Since bitcoin became currency for many services, the discussion and talks would divert from bitcoins. Now this forum is not a small community of members who just cared about bitcoin.

Signature campaigns have brought some spammers, but that has brought many new users and made this forum as good place to advertise. Don't just look at the negative side, there many campaign participants who doesn't spam and more campaign managers trying hard to kick out spammers. Thus making this forum at least in a sense as decentralized.