As I recall, he did fairly well overall. But there were still some errors in the presentation. He provided several pictures, in 1990s-grade postage-stamp quality, which could cover over a lot of issues. One of them was of him shooting a "laser pointer" in his time machine powered by a black hole, and the beam being visibly quite bent. The low resolution covered over the fact this was kinda obviously one of those strings of little lights wrapped in a tube with enough plausibility to believe if you want to. But if the laser pointer's light is getting "bent" like that, all of the light ought to be getting bent, not just the laser pointer, and you ought to be getting immense visual artifacts due to the fact that your picture is itself being taken with light that is bending like crazy (see stuff like [1]). Not to mention the implied gravity field at such bending rates is beyond anything atomic matter can take. But even if we handwave that away, there really isn't a way to handwave away the fact that if the light from your laser pointer is getting bent, all the light ought to be getting bent, to massive effect on the resulting picture.
Still. Valiant effort. Better than most I've seen. Most of them are basically "Hi, I'm from $INTEGER years in the future and it turns out that you all are exactly right about everything and all the fashionable social concerns of your day/culture/sub-culture are in fact exactly correct! In the future, everybody who didn't (eat vegan / believe in BitCoin / get concerned about the landfill crisis / accept pholostigon theory) is dead because (they where all executed by super ethical governments for the crime of eating animals / died in pauper's prisons / literally buried in garbage / of the great Pholostigon War of 1773)! Ask me anything about how right your current social fashions are!" Not that Titor didn't more than dabble in that himself, though.