The TGWTG site's redesign, which was pushed back again and again for years. As of December 2014, the site was dropped and the producers' contents were moved to Channel Awesome.
As of writing, the shows promised here still have no sign of being completed. Even people who donated have had no word of anything.
Evil Is Petty: While not necessarily "evil", they've certainly done some questionable things over minor reasons. Chief among them making Obscurus Lupa an Unperson simply for waiting 15 minutes to reply to a request to chat. Eventually Phelan and Andrew and quit in protest (Lindsay and Kyle quit around the same time, but for other reasons).
Keep Circulating the Tapes: Various contributors have works that aren't easily available. Some contributors' videos have vanished altogether following their departure from TGWTG or Blip, have been lost in the Blip purges or have been taken down due to copyright issues or other reasons. After the original TGWTG website went defunct in December 2014, any content that wasn't moved to ChannelAwesome.com also qualifies.
Promoted Fanboy: Many of the contributors were already fans of the website and featured on Transmission Awesome's (Rollo T also being an example of this trope) Awesome Blog of the Week segment before being picked up.
Saved from Development Hell: Blistered Thumbs, after spending more than a year with plans for a site, launched in the early hours of November 7, 2010. However, after 3 years of operation, it closed in January 2014. All of their contributors were moved to the TGWTG website.
Schedule Slip: While Doug and some of the other producers keep a tight schedule, a good deal of the team only sporadically submit movies or anything else. Of course, most of them do it as a side project, not as a full-time job.
Screwed by the Network: Obscurus Lupa's story of her departure reeks of this. First, Mike Michaud (and later Doug Walker) ripped into Lupa for putting extra midroll ads into her videos even though she needed the midrolls to pay her bills. Then, Mike and Rob Walker forbade Lupa and the other reviewers from promoting their Patreon pages until a bad PR incident involving Suede forced them to relent. Finally, Mike and Doug tried to chat with Lupa while she was away from her computer and didn't know they wanted to speak to her, and waited fifteen minutes. When she got in touch, they told her she would be let go and have her videos removed for "ignoring them." The move clearly backfired as it caused Phelous and Andrew Dickman to leave the site in protest.
Mike "The Birdman" Dodd was dropped from That Guy with the Glasses without being told, and he only found out about it a few weeks later when he tried to submit a new video to the site. This appears to have happened to Benzaie as well, as none of his videos were moved from the old TGWTG site to the new Channel Awesome site.
Inked Reality was talked up as being split into a separate site around the time Blistered Thumbs first split off, but it was put on the back burner. With the closure of Blistered Thumbs in January 2014, and the moving to the new Channel Awesome website in December, it looks like the plans on it were fully abandoned.