Sure. Any debate with exchanges is welcome. Perhaps I will move communications onto an exchange watch platform as well. The central goal here is objectivity. I try to make not any judgements, but to provide tools for judgements of market participants. Tools can be data and ratings. The goal should be to make the (BTC exchange) system more stable. I believe this can be quite independent of BTC alone, although of course there are overlaps. In general some cooperation between exchanges make sense as well, in terms legal/political issues.
Having said that, I very much appreciate that you have opened up your sourcecode. Opening up the source of the exchange is a very good idea IMO, see
https://github.com/justcoin/snow . It makes sense that the BTC community (if such a thing exists) channels through exchanges which have the interests in mind, such as a) low prices b) no manipulation c) safety and security.
A question I have is: what deposit mechanisms do you allow? SEPA, International Wire? I believe that in most countries the legal status, especially cross-border, is very much in the open, with regards to bitcoin, but also bitcoin exchanges.
The general idea is that the list is complete, but there will be some mechanism (t.b.d.) which will then allow for people to make their judgement. I.e. the exchange watch project is then a plattform, not a simple unordered list. Perhaps in the longterm this might evolve into an API based plattform. For instance each exchange has a ticker and then one can route through a distributed network. This kinds of systems are common in the established international markets. If exchanges have interoperability the users can route between them. All of this will hopefully facilitate better exchanges. In my view the end game is that exchanges will operate at near zero margins.
I note that there are various models of exchanges. Some exchanges are OTC based, such as Localbitcoins and BTCde.