Try adding post validation, if a post gets too many downvotes it is hidden until a mod visits it and eventually unhides it.
Or, after the first approved post you can post without approval.
Try implementing captcha for the first bunch of posts (even if it’s breakable), add email validation if you haven’t already done and some random question during the registration, like what’s the framework name or w/e.
How can I make a new post in this Ionic Forum? I used to be able to but I can’t find any button sth like “New Post” to start a new post this morning. Is this because of this spam thing?