The CEO of Parler has been all over the place between saying his company is ruined forever and they'll be back in a couple of weeks. The truth, as it often is, is somewhere in the middle. But it's much closer to the company is destroyed.

Most people who use it are on iPhones, where you can't run apps if Apple doesn't allow it, or Android, which can run locally installed apps, but you have to click through some boxes saying it's a security hazard. And without the prominent placement on the Play Store, few will know to do it. 

It's also much easier to host a page claiming you'll be back soon than a site that lets millions of people access it in real time, with push notifications and bloated "modern web" features.

There's really almost nothing these "social networking" sites do today (except spy on you and load fancy doodads) that a bulletin board program couldn't do in a web browser 20 years ago using 1/1,000th as much data, but it's no problem at all to host and serve that much data for Facebook. Maybe a different story for you.

Regardless, Parler has been badly wounded even if it was operational as a website.