It is very thought provoking. If you look at it the other way round, rather than some future guys logging into our ancient chit chat, it would be like us logging into some old conversations from forums back in the 1700's or something. How cool would that be. Sadly we can't do that.
I think the saddest thing that could happen, and without doubt WILL happen, is that future guys will look back on us and think to themselves, wow, they kept so and so species back then, but in the future they couldn't keep them because they'd become extinct!
The only message i'd have for a future guy looking back on this is, "yeah, don't worry about it pal, heaters were crap back in our day too!" (Lol, a current thread regarding how often you should change your heaters as prompted that).