1. Sure Bitcoin isn't fast enough. But if you think Ethereum will be able to handle the stress, I don't know. Remember crypto kitties?
Ethereum is better than bitcoin in so many ways, what bitcoin has is the respect and reputation from most of us.
2. Reddit can implement such feature without using smart contracts. What's the point in using smart contracts anyway? It's not like Reddit is trying to be decentralized or non-custodial or something.
I doubt they can possibly made it without smart contracts, they want the ethereum then they should be running under ethereum smart contracts, it is not that they want to be decentralized or non-custodial, I guess it's part of having the ethereum.
3. Continue trying to convince yourself that. Dig deeper and you'll immediately realize that Ethereum isn't even decentralized hence pointless.
It's not pointless, and reddit knows it, there is something with ethereum that you cannot find with bitcoin. With all that, I'm excited to taste it with Reddit.