Are there? I've seen only a few isolated anecdotes. In any illness affecting tens of thousands, there will be a few who experience particularly severe complications. It's not useful to portray these complicated and severe outliers as being typical. Right now, the data show that the vast majority of people who contract this virus fight it off without experiencing any symptoms whatsoever and suffer no long-term damage at all, which is exactly what you'd expect from a typical virus infection.

People keep claiming that this virus has exotic and dangerous features atypical of coronaviruses and viruses in general: I've seen everything from claims of immediate reinfection to 30-day incubation periods to long-term gonad damage. None of these claims has been substantiated on the basis of anything but isolated (and frequently unsourced) anecdotes, and a very strong Bayesian prior should be that this virus works like any other and doesn't actually do these random and exotic things.

There seems to be a contingent of very online people who want to sow as much fear and anxiety over this thing as possible, even if it means presenting a warped view of the data. We should reject this endeavor.