Matthias Pfefferle (@pfefferle) – WordPress user profile

Bio

A fullstack developer, blogger, podcaster, OpenWeb advocate, citizen of the IndieWeb, working on ActivityPub and IndieWeb for WordPress!

Interests

IndieWeb, Fediverse, ActivityPub, Open Web, Microformats, Webstandards, biking, Home Automation, IoT

WordPress Origin Story

– In 2002 I installed my first blog using the WordPress predecessor b2.
– 2004 I switched to WordPress.
– I worked on my first theme in 2006 and my first plugin in 2007.
– I uploaded a first theme (SemPress) to WordPress.org in 2011.
– Two years later, SemPress was added to the WordPress.com theme directory by Automattic.
– 2015 was my first “Core Contribution” (OEmbed).
– I held my first WordCamp talk in 2016.
– I held my first WordPress Meetup talk in 2019.
– Started working on ActivityPub for WordPress in 2019
– 2023 I joined Automattic to work full time on the OpenWeb/Fediverse

https://notiz.blog/2018/06/19/15-jahre-wordpress/
https://notiz.blog/2023/06/02/20-jahre/

Badges

CODE

7 badges

Core Contributor '15 Hosting Contributor '20 Hosting Team '20 Meta Contributor '20 Plugin Developer Theme Developer WP-CLI Contributor '24

CONTENT

1 badge

Photo Contributor '22

COMMUNITY

3 badges

Meetup Organizer '24 WordCamp Organizer '24 WordCamp Speaker '16

POLYGLOTS

2 badges

Translation Contributor '15 Translation Editor '15

Current Job

Open Web Lead

Apr 2023 – Present

Automattic

I work on open, portable, interoperable, small, social, synaptic, semantic, structured, distributed, (re-)decentralized, independent, microformatted and federated social web stuff.

Recent impact

Score weights high-impact work (commits, releases, approved translations, props) at 3x routine activity.

Last 30 days

18contributions

high0

medium18

score18

Last 90 days

93contributions

high0

medium93

score93

Last 12 months

312contributions

high6

medium306

score324

WordPress releases

Contributed to 5 releases

Contributions

Type

June 2026

Jun 05 Fri · 21:39

Forums med

Posted a reply to Follow activity reverts from ‘Unfollow’ to ‘Confirm Request’, on the site WordPress.org Forums:
Thanks for the logs, the issue should be fixed with: https://github.com/Automattic/wordpress-activitypub/pull/3372

Jun 05 Fri · 08:16

Forums med

Posted a reply to Follow activity reverts from ‘Unfollow’ to ‘Confirm Request’, on the site WordPress.org Forums:
@whatwhere can activate that snippet for your blog, start a follow process and share the…

Jun 04 Thu · 06:55

Forums med

Posted a reply to Push single post, on the site WordPress.org Forums:
(I will also check why your blog lost connection... This should not happen at a…

Jun 04 Thu · 06:54

Forums med

Posted a reply to Push single post, on the site WordPress.org Forums:
Hey @seindal 👋 Good point! Would you expect something in the wp-admin UI or is…

Jun 02 Tue · 10:07

Forums med

Posted a reply to Blocked user’s deleted posts cause reply loop in moderation queue, on the site WordPress.org Forums:
We released the fix with version 1.1.1. Let us know if you still experience any…

Jun 02 Tue · 10:06

Forums med

Posted a reply to Reconnection required after not even 24 hours, on the site WordPress.org Forums:
Version 1.1.1 should fix the issue. Let us know if you still experience and problems!

May 2026

May 31 Sun · 18:48

Forums med

Posted a reply to Follow activity reverts from ‘Unfollow’ to ‘Confirm Request’, on the site WordPress.org Forums:
@whatwhere I checked your profile and it seem to have 3 followers, so the follow…

May 31 Sun · 18:42

Forums med

Posted a reply to Activitypub: Author URL “(…)?author=1” not accessible, on the site WordPress.org Forums:
Hey @jeroenleenders 👋 where do you host your site if I may ask? The author…

May 31 Sun · 13:23

Forums med

Posted a reply to Reconnection required after not even 24 hours, on the site WordPress.org Forums:
hey @vsg79 👋 Reconnecting every few hours can’t seem to be intended. It defies the…

May 28 Thu · 18:52

Forums med

Posted a reply to Unable to connect account, on the site WordPress.org Forums:
Hey @vsg79 👋 I just checked with my eurosky account and it worked out of…