Definitely a strange case for them to start bumping with such a long period of inactivity, but if they're bumping it now, no doubt they did it back in 2015. I'll go through the entire thread.
Maybe I didn't express myself properly; they weren't inactive since 2015, they started this project back in 2015. They almost certainly used some bumping service as you don't get a thread of 800 pages for a completely unknown project, at least for me. On CMC they are listed as "untracked listing" while I couldn't even find them on Coingecko. Looks like they gave up yet they are trying with this marketing technique.