I've looked at ilovecaching's comment history (at least up to ~60 days ago) and they seem consistent on being a networking programmer who uses C++. Was there a particular comment you found which would indicate this isn't the truth?
https://news.ycombinator.com/item?id=18185795 "I've been using Rust in production for a little over half a year, and my team and I have run into very few issues. [...]
We're all extremely glad we chucked C++ and Go and switched to Rust. "
It really isn't that ridiculous that someone who has worked as a network engineer for a decade would use Erlang, C++, and Go. Even Haskell isn't too much of a stretch, considering the user's company has functional programming expertise in Erlang. Rust is a neat language that, depending on their workload, could replace all of those languages. Why the presumption of bad faith?
Not seeing any major inconsistencies. Three months ago they exclusively used Go and Rust, at some point before that they used Erlang and Haskell and they used C++ for a total of over 10 years.
Talk about cherry-picking. It's pretty clear from those comments that they've worked with Erlang before, as well as Haskell and C++, and that they've transitioned to use Rust.
For example, in the same comment that begins with "As a long time Erlang developer", they later continue: "I’m more optimistic about Rust ... We’ve been able to scale Rust to handle the same load as our Erlang cluster". So there's no contradiction here.
I guess I'm glad that someone sits around looking through comment histories skeptically, but I don't see what about these comments seem suspicious to you.
I've looked at ilovecaching's comment history (at least up to ~60 days ago) and they seem consistent on being a networking programmer who uses C++. Was there a particular comment you found which would indicate this isn't the truth?