Sumita: what https ?
https is a secure protocol uses SSL certificate mean data/message request done between user and site are encrypted and hack proof and also
site became nearly hack proof , spammer no more create problem now .... Every country's service provider keep record of user's ip address that uses https protocol and if abusers or spammer create problem they are under own country's cyber law and site administration can online file FRI against abuser/spammers according Indian panel code 66A and 66B , in different countries cyber law's varies