Piazza sucks.

I’m in Academia. Well, at least the part of Academia that’s still related to actual teaching.

The vast majority of my collaborators in UMD as well as in other institutions use Piazza to host their courses. It’s easy, it’s fast and at the very least it looks like it has close to 100% uptime (written during a time that our UMD fork of Instructure’s Canvas has been down for hours).

However, active development on Piazza has effectively stopped since early 2015. During Fall 2016, I would look at my Android Play Store for updates on the Piazza app and for a long time the latest one would date back to February 2015. Right now, it appears that certain patches have been made as early as Feb 7,2017, but the app is still atrocious. This is just an example of the many issues that surround Piazza.

The most major issue, for which I just submitted a bug report, is the fact that there is no filesystem consistency on Piazza. If you use the “Resources” tab and post a link to the file in a discussion topic, and you want to make a change to the file, then all the other links become stale. They point to positions in an Amazon S3 filesystem. When the number of links to a file grow, this becomes a huge problem.

Furthermore: the only way to password-protect your page right now (of importance to any person who needs a private discussion forum), you need to actually send an e-mail to team@piazza.com with your password choice, which of course is then stored in cleartext in your e-mails. My response was immediately adhered to, but what happens if you need to password-protect it during a weekend? I use Piazza to communicate with my TAs, and the information conveyed is often sensitive (thoughts on midterms, recitation topics, rubrics). I don’t want students snooping around (it’s already happened once this semester).

Piazza is perfect for communication: students love it, because other students can immediately offer responses. In contrast, nobody ever uses the Canvas “Discussion” feature. However, in departments where the average course registration is in the hundreds (like us), moderating such a huge forum requires TAs dedicated to doing only that. It’s not impossible, but it’s hard. Ensuring that solutions to problems under active submission don’t leak is tough. A student can take down a post within minutes, yet a PDF with solutions can already have reached a good portion of the class.

But all of these things are simple issues of technical decisions and design. They could be met through either Bug Reports or (a)synchronous brainstorming sessions using tools like Confluence or HipChat. What really bugs me is how the Piazza team doesn’t seem to care any more about the product, shifting their entire focus into making it yet another recruitment platform, which they call “Piazza Careers“. Seriously? That’s what students need? Another recruitment platform? I’m guessing that the Piazza team had some sort of shift in their venture capital and it was required of them to transform the entire platform into another recruiting platform.

It’s a real bummer. Blackboard has been a disaster (link) and Canvas has too many issues to discuss in a blog post. Active Learning services like TopHat are breakable when people use their phones. I recently had a student pretty much admitting to me during my office hours that they never attended the lectures of a certain math course, but had a friend of theirs text them the TopHat code and the proper answers to the questions. The clickers and accompanying software offered by Turning Technologies  have multiple issues of connectivity, even though those issues mostly have to do with the ELMS-CANVAS integration and not the software or clicker device itself.

We need reliable educational software. Not another recruitment platform. Pooja Shankar, an alumni of CS UMD and the founder of Piazza, ought to be the first person to recognize this.



3 thoughts on “Piazza sucks.

  1. My high school used Edmodo for discussions and announcements, if you’ve ever heard of it. It worked well for our fairly small classes of around 30 students. I’m not sure how well it would scale with a class with almost 500 students like CMSC 250, however.


    1. Nah, I have not been familiarized with Edmodo, yet a quick scan of its webpage might suggest that it’s mostly used in highschools. Is that true? What kind of features come to mind?


      1. It’s mostly used in high schools and so probably wouldn’t scale well with larger college classes like CMSC 250. Edmodo doesn’t allow for conversations to be grouped in folders like Piazza which is a significant drawback. Instead, every post is just placed on one long page. Multiple posts are organized into groups, which are usually classes. I’m curious to hear what your concerns with Canvas are though, since I’ve had a pretty good experience using it.


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