The discussion about forum has ended.
Discourse has been chosen as a forum software for forum.amibroker.com
Discouse is way more capable than any other forum software out there.
Suggestions to use "older" more "traditional" forums offer solutions that are mediocre as compared to Discourse. Those forums don't offer e-mail reply (Discourse support email replies) and don't provide even small fraction of Discourse capabilities. Discourse allows e-mail interaction and sophisticated real time web interaction at once. No other forum allows that.
As for Q2A (http://ask.amibroker.org) it stays too at least for a while because it offers anonymous posting which some seem to prefer. Whenever Q2A will work out as viable long-time option remains open.
As for YahooGroups - only main group (email@example.com) continues to operate in June 2017. Other thematic subgroups (amibroker-dll for example) that were mostly inactive are switched to read-only.
It is yet to be decided whenever YahooGroup will continue to be open in coming months (July and so on)