That's an interesting question, since Syn only uses dirty writes (and hence has no locking mechanism). Therefore yes, I think this is due to the increased nodes inter-communication (which obviously takes resources).

I recall reading at some point that things really start to get out of hand re: gossip somewhere around 12 nodes. Not sure if that's a modern limit or not though.

Hi, as per what I said in the article: this is just one type of use case, I'd be interested in knowing other people evaluations as well.