Rephrase the "Subscribe to this plugin" button and adjust the unsubscribe flow

[Otto42]

Prompted from ​https://wordpress.org/support/topic/getting-swamped-with-wordpress-org-emails-this-must-stop/

It seems that some people think "Subscribe" means something other than "email me things". We've gotten a number of posts in the forums where people are confused as to why they are suddenly getting bombarded with email. Invariably, they subscribed to a plugin forum. We tell them to click the unsub button and usually that's that.

But if people are unknowingly subscribing, then we should:

a) Adjust the wording to be more clear what's going on

b) Adjust the emails to have some form of unsubscribe link that actually works when clicked on from the email

Suggestions welcome. Patches also welcome.

[JarretC]

a) Instead of having the text as 'Subscribe to this plugin' move it over to just 'Subscribe' with additional text next to the button such as 'Receive email updates about new topics'. Something like the below image

With better formatting of course, just an example

b) Change the Login and visit the topic to unsubscribe from these emails. email content into

To no longer receive emails about this topic, please visit the link below to unsubscribe:
​https://wordpress.org/support/plugin/gutenberg/

We could just add $forum_url = get_permalink( $forum_id ); and output that for the unsubscribe link

[psusu]

first attempt to patch

[psusu]

I tried to change get_subscription_link() in wporg-bbp-term-subscription plugin and do_subscription_link() in support-forums plugin.
The work on the subscription email message still needs to be done.

[psusu]

Patch enhanced with subscribe email message

[psusu]

In the last patch I've added the email message enhancement.

[dd32]

In 10673:

Support Forums: Move the "Subscribe to this plugin/theme" button to the sidebar instead of before the main topic listing.

This also adds a javascript-based confirm "are you sure?" confirmation upon attempting to subscribe to the plugin/theme.

See #3456.

[dd32]

In 11529:

Support Forums: Add a notice above a forum if you're subscribed to it.

This also adds a notice that you've successfully unsubscribed from the item too.

See #3456.

[dd32]

In 11530:

Support Forums: Fix a typo in [11529].

Props kittmedia.
See #3456.

[Otto42]

#6090 was marked as a duplicate.

[dd32]

In 11580:

Support Forums: Add unsubscription links to plugin/theme/tag subscription emails.

Note: This does not add unsubscription links to bbPress emails, only the ones this plugin adds.
Emails from bbPress for forum / topic subscription ('notify me of replies') will not have these links.

See #5505, #3456.