If you want to ask a question, discuss an interesting topic or to get feedback you can join a tech workpace. That are chatrooms, where you can get in contact with interesting people.
General
https://www.giving-circle.com/ (Startup, Business)
https://join.slack.com/t/startupabcworkspace/shared_invite/zt-6oyr8kaq-IBtHd9_HSIyN7m6qI3Co0g (Startup ABC)
http://www.berlintechs.org/
CMS
https://make.wordpress.org/chat/
https://woocommerce.com/community-slack/
Webdesign
http://webdevs.xyz/ (German)
More Communities
Groups at Facebook/Xing/LinkedIn (if you need a list, let me know).
And see also the directory https://slofile.com/