Hilder Santos

Tired of link every Twitter profile cited in your posts and pages? Birdfy allows you to automagically transforms your @users and #hashtags markups in your posts/pages into links to Twitter profiles/hashtags search.
All you have to do is install this plugin, and you’re good to go.
Features
<ul>
<li>Automatically discovers @ and # content into your posts and pages (excluding e-mails, dots after usernames and so on);</li>
<li>You can disable users and/or hashtags discovery both globally or in individual posts/pages;</li>
<li>Optionally, you can choose to open the links in a new window/tab.</li>
</ul>
Usage
Simply install the plugin and start to cite Twitter profiles by using @ before the twitter username you want to link, and the plugin will transform it into a link to the profile. Same with hashtags, by simply use # before any word – like in Twitter.
If you want to fine tune the plugin, you still can go to the Options page, named “Birdy Settings” (inside the Settings menu) and enable/disable the options you want. Remember that this options will act globally.
You may want to disable @users/#hashtags links in individual posts/pages also. In this case, just disable what you want in the box created inside your post/page administration page.
<h3>Contact</h3>
Want to contact me? Just drop me your suggestion, bug, congratulations and so on at hilder[at]hildersantos.com, or contact me on my <a href="http://hildersantos.com/contato" title="Link to my contact page" rel="nofollow ugc">contact page</a>.

Birdfy – Twitter markups for WordPress

Birdfy is a plugin that allows you to use @users and #hashtags markups on your posts and pages, and to link them to Twitter.

Jason Coleman

Paid Memberships Pro

Jared Atchison

<h4>Add an avatar upload field on frontend pages and Edit Profile screen so users can add a custom profile picture.</h4>
Community and Membership sites on WordPress use this plugin as a lightweight solution for custom user avatars. The plugin is compatible with bbPress, as well as many popular plugins with frontend user registration and profile management features.
Admins can upload a user’s avatar on the Edit User admin screen.
Basic User Avatars also supports front-end avatar management for sites that want to keep users out of the dashboard. To use this feature, add the shortcode <code>[basic-user-avatars]</code> to any page in your WordPress site. We recommended placing this shortcode on another logged-in account type page, such as the WooCommerce My Account page, the Membership Account page, or any other front-end profile edit form.
The Avatar Upload form is automatically added to the bbPress User Profile > Edit frontend page.
If you do not want your users to be able to update their avatar, navigate to Settings > Discussion and locate the “Local Avatar Permissions” setting. Check this box to only allow users with file upload capabilities to upload local avatars (Author role and above).
<h4>Seamlessly Migrate from WP User Avatar Plugin</h4>
Version 1.0.5 includes a feature to automatically convert avatars formerly loaded through the WP User Avatar plugin. This means that you can disable WP User Avatar, activate Basic User Avatars, and have a seamless transition for existing avatars in your site. Be sure to update any avatar upload form that used the <code>[avatar_upload]</code> shortcode to use the shortcode: <code>[basic-user-avatars]</code>.

Basic User Avatars

it may have been around for a while but this plugin still works well

still works with WP4.9.1

Add an avatar upload field on frontend pages and Edit Profile screen so users can add a custom profile picture.

Birdfy – Twitter markups for WordPress vs Basic User Avatars