Add a way to prevent users to submit too many posts in a given period

[ellmetha]

Should we add a way to prevent users to submit too many posts in a given period?

[ambedoz]

It would certainly be helpful against spamming and (unintended) repetitive submission.

[Toshakins]

Probably, this could be achieved by having CAPTCHA checked during Post/Topic creation.

[Andrew-Chen-Wang]

ping @ellmetha Perhaps just adding a reCAPTCHA field? I haven't taken a look at the forms (since I'm just taking a look at this); is there a way we can customize the form for submitting a post?

In general, if there's a created attribute in the "posts" model, then it's possible to do a simple query and allow for it.

[BoPeng]

I have done this with

@receiver(post_save, sender=Post)
def identify_spam(sender, instance, **kwargs):
    ## search database for author activity and post similarity, if suspicious,... 
    if spam:
        instance.delete()