I'm not sure if the dev is aware of LIR - its planned to release in December and gathering big momentum/hype in the community. There might be a risk to lose a lot of customers if SD stays unstable and the project delivers what they are promising (and doesn't turn out to be a scam). Prolonged stability followed by a sig campaign would help cement SD reduce any risk. Stability has been a bit better the last few days, so lets hope they can keep it up =)
LIR is a good idea. Rubies is similar to LIR but i feel that it is too limited and most of the rubies are being under control of betterbets. There is why when i heard of rubies being added to moneypot, i am not too excited. However, for LIR, i think so far it is having a good start. I think once the site start to open to the public, we can even a strong growth in LIR and this can be a good alt coin to be use as gambling currency.
Will be interesting to see what happens. I've invested into LIR but didn't touch Rubies. I still see LIR as a bigger risk than SD, but also better rewards if it pays off. So keeping invested into both platforms, there is certainly space for both to do well.