I really thought as you are there from long time on this forum you know most about trading related. What we are unlisting are personalized and account specific, don’t want to make this support forum, If you are facing any issue then please create a ticket.
For ex, can check this thread Strike price is outside the allowed range - #216 by teenscm and this issue is real and many are effected and people are bashing us for this and we have not deleted it, and there are many threads where we are criticized. We just unlist personalized / account specific related but not just based on criticism.