I'm glad icanhazip will live on! We also see a lot of malware and bot traffic to https://ipinfo.io, but nowhere near these levels!
No of course no reason to switch away from us! We provide many more details than icanhazip and others (geo, asn, anycast etc). We handle 40 billion requests a month,and plan to be around forever!
I'm just glad that icanhazip is staying up - it sucks when useful services go offline, and negatively impact all their users.