Can't edit posts/files, can only delete (pic related), but I don't believe it's enabled for /qresearch/. At least I don't see the option after I post myself.
You could always ask BO or BV to edit or delete, though usually if someone does, it's taken as a DELET THIS joke kek.
Filtering doesn't carry over from bread to bread, it's based on ID. So when the ID changes, the filter comes off, regardless of IP.
FAQ's are here too for anyone interested: https://8ch.net/faq.html
You'll have a hard time finding anything in particular unless you make a screencap of the post(s), or keep a running list of your ID's and the bread #'s you were in. You could also save the page from your browser or print to pdf. My mom just copies the raw text into notepad kek.
We have no search function (yet). Anons have been working on fixing that for a while. But if you save pdfs, you can use your system browser to search for topics, dates, etc.
If someone answers you, you'll see a ( you) in small black letters next to your post # for as long as you stay in the bread. Use Crtl+f to find them quickly. But as soon as you close the page, it will disappear. Unless you keep track of your post numbers, you generally won't know if someone answers you at a later time.
But there is no in-your-face notification system like twatter or faceberg, if that's what you mean.
Also, idiots (mostly) like to write ( you)'s within their own posts just to be funny and mess up people looking for legit ( you)'s. Font size makes a difference there.
Another note: breads eventually fall off the main board and end up in the beta archive thingie at the top of the Catalog page. Posts will be saved but images are generally lost at that point. This is why Q/we stress about archiving offline.
Otherwise, welcome! All experience is appreciated.
Without a searchable archive, unless something made the Notables or you keep a personal archive, it's tough to find a specific topic.
You can try searching the Past Notables on /comms/ though. That'll give you Bread Numbers to try looking in.
https://8ch.net/comms/res/1536.html
https://8ch.net/comms/res/225.html