My considerations are as follows:
Interest rate:
-It seems to me the justification for 3.3% comes from that if there is finite amount to borrow i.e. $33M - then those who borrow can get the benefit of the cheap loan and also the benefit the invested underlying treasury. Holders who do not borrow (or do not get to because of capacity) miss out with no benefit. The particular decision for 3.3% seems to be based on the recent updating of the proposed DSR rate - the mantra 'why shouldn't the treasury just put the DAI in the DSR and then we can all enjoy the rate together.' In the medium term the DSR rate will come down and we will agane have to come back and discuss rates - which will be irritating. If we are to adopt the logic of the 3.3% rate we should consider what a ongoing rate is appropriately adapted to meet the concern of the borrowers free lunch maybe 1.1% or 2.2% would serve better in this role. With that said the 3.3% rate will be better than the current situation of paying other protocols for something we can do ourselves - but would not move the needle on mind share, building or OHM as a desirable treasury asset.
-Unsurprisingly then I support 0.5% rate. The main reason for this is that in order to win we need others to build on top of OHM. This low rate in the current climate will make it irresistible to build on top of and integrate OHM, it makes OHM a unique asset in defi and does this by leveraging our competitive advantage - our treasury. The most popular building blocks for Ohmies will be OHM compounding - lead to trading above backing (monetary premium) and network growth. No one is building or indeed is planning on building on top of OHM - this has the potential to change that calculus. In terms of the borrowers vs non-borrowers arb, I actually see this as a positive because it will compel participation in the econOHMy and if you don't want to then big deal you lose 1 or 2 percent when rates come back down (sooner than you think). The rate also compounds for example if my product is 2x OHM exposure and pay down my debt with alUSD 0.5%x2 is 1% and 3.3%x2 is 6.6% (as Potted points out https://twitter.com/pottedthings/status/1669720228337442816). If you must justify it to ourselves in another way then we should see this as the best marketing budget you could ever buy, because if the objective is to trade above backing then it is symbiotic for non-borrowing holders even if they get a technical clip.
I don't have strong view on the tenor arguments either way but 12 month seems to have been strongly supported
The $3000 LTV will make a lot more sense once we have completed migration imo and I would support it if we can get clearer data (ETH pumps in the interim). If my choices are more builders on top of OHM or less exposure to ETH upside I will choose the former.
Capacity I am agnostic we can always increase as high as it needs to go
Finally fwiw (and those who have been around for a while will come as no surprise), I think this really all does highlight that we could have our cake and eat it too from the upsides and downsides of this (as much as one can) if we used our treasury & resources to standup a LST/gOHM backed stablecoin…