⭐ Merited by bill gator (1)
Back to the closing threads issue. I don't think it would reduce spam as new threads will simply replace them. Many of these threads are actually opened by account farmers for the purpose of answering from their alts. What it would do is stop annoying anyone that replied early in the thread from constantly seeing them pop up in their unread replies page.
Would this not also fall under the opinion and speculation category? I haven't seen much evidence for this, at least in the thread I reply it seems that OP is genuinely interested in getting an answer most of the time, but then get lazy about locking the topic or simply unwatch the thread and never come back. I've been proven ignorant on many things though, so I'm not saying you're wrong; it just seems ironic to place the one as speculation and not this.
This is based on what I've seen the moderators say many times so maybe file it under the opinion of those dealing with it every day.
I'd just be happy if there was an auto lock after x days with no posts system and the OP could reopen if they need to. I always want to check threads I've posted in for replies directed @ me and it is a real pain when dead threads are bumped for no reason.