We are moving our formal guild chat from google hangouts to Slack. This allows us better control over chat moderation, inviting and kicking users, and it also allows us to have some offshoot chats for game specific banter.
To join our new chat fill out this google form we made and include your username we know you as (usually the same as vent/website), and the email you would like to use to receive the invite. Your application is private, and will only be viewed by officers/leaders. The application can be found here : http://goo.gl/forms/EPrsVdnzCI.
After we have had time to review your application, you will get an invite from firstname.lastname@example.org with an invite to join. From there you will need to create an account.
There are Slack mobile apps for both IOS and Android, as well as a windows desktop application to use outside of the browser. You can can find them in the IOS/Android app store as "Slack", and once you have an account you can download the desktop version at https://kabalseed.slack.com/apps.
When we switched from google hangouts to slack for out of game text chat discord was just a month old and far different then it was today. But even now Slack is still much more suited to text chat then discord is, with useful features some of which discord has slowly started to roll out. But when we have around 100 people in the chat and multiple different groups it is much cleaner with slack than it would be in discord. Some notable improvements that Slack still has over discord at this writing is the ability to join and leave different channels so they are hidden to you and don't take up UI space, have private channels with multiple people without changing to a PM screen, cleaner moderation and permissions setup (discord likes to ignore a lot of permissions if you're an admin), and notability not having to worry about people joining voice channels on accident or forgetting they are still in one. The majority of our users use the text chat at work during downtime, and having a clean easy to use app that they don't have to worry about voice features being on or having the app blocked at work is a big deal.
However, the biggest reason is that our members are in slack and slack still works for us. Switching over systems is a large chore that we don't wish to do unless we have to. While a lot of users are in our discord now because we use it for voice chat, we have the channels, app integrations, bots, and everything else already how we want in in Slack and people are used to going there for our out of game text chat. If something changes that we can not continue to use slack for text chat, or if discord text chat continues to be improved upon and the officers and leaders decide it is up to the level that we have incentive for switching to it, we will reevaluate it. We're always keeping an eye on what might be easier for our members to use, and easier for our officers and leaders to moderate.