I can only speak for myself.
If you are really going to talk/ask about the same topic, then continue the old one.
Otherwise, I would open a new one.
I can't guarantee reading/answering anything.
But I can almost guarantee NOT reading/answering anything that has any of the following qualities:
1. poor title... if I see something called "Inventory" or "a bug" or "smn hlp fr gd sk" or "thread for small questions"... I basically ignore it immediately, I don't even open it... if you want someone to spend time on your question and get a meaningful answer, you should at least show some respect by formulating your question clearly and make it search-friendly
2. a 6-page wall of X questions and Y requests in the same (single) post... also immediate ignore... I'm too lazy to spend 20+ minutes reading it and even lazier to spend 60+ minutes writing a concise answer... you have a MUCH higher chance of getting an answer from me following the rule: one post = one request and one post = one question (or several questions about the SAME thing)
3. this is specific to the oxce subforum: try to ask questions under "oxce support", report bugs under "oxce bug reports" and create requests under "oxce suggestions new"... if you post somewhere else I will probably miss it... especially the main oxce post should not be used for such things since it is practically impossible to find anything there... and I want people to be able to search for stuff that has been answered already 100 times...