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Yes! Hashtags are very very welcome here 
You can follow hashtags which is good for discovering interesting new accounts: https://fedi.tips/how-do-i-follow-hashtags-on-mastodon-and-the-fediverse
As people follow hashtags, it's also a really good idea to include relevant hashtags on your own posts (if you want your post to be discovered more easily).
p.s. For those wondering how this can happen, the .pe domain which gup.pe used has a highly unusual clause which allows anyone to buy the domain 12 days *before* it expires:
"The .CH, .ES, .FR, .LI, .PE, .SG, .COM.SG, .COM.AU, .ORG.AU, .NET.AU TLDs must be renewed 12 days prior to the actual expiration date. If not renewed, the domain will enter the redemption stage right away regardless of the number of days left until expiration."
https://www.namecheap.com/support/knowledgebase/article.aspx/9916/2207/tlds-grace-periods
(Thanks @anonax for info!)
Okay, some really bad news but also a suggestion for a way forward.
The Guppe groups domain name was sold by their registrar before they could renew it. This means all Guppe groups are broken, and their web addresses point to a spam blog 
However, there is another group provider called FediGroups, you can find out more on their site:
️ https://about.fedigroups.social/home
FediGroups has features that Guppe never had, including private groups.
(More info about #Guppe situation: https://github.com/immers-space/guppe/issues/118 )
If you're browsing a Mastodon server's website, have you ever noticed the ⧉ button on people's profiles?
This can be very useful, as it lets you copy the profile's web address in a single click. This makes it easy to:
- Paste it into the search box on your own server or app, so you can interact with it
- Share the profile with others on other platforms, it's a web address so anyone can view it
- View the profile in a new browser tab, the address will be the "original page"
️ There is another "verification" scammer on the move, do not click on their link, it is a scam!
️ There is another "verification" scammer on the move, do not click on their link, it is a scam!
Genuine Mastodon servers never demand verification like this.
If you see a scam post like this, click ⋯ on the scam post, then "Report", then report it and make sure you select the option to forward the report to the origin server.
