CaptMax,
Its a matter of forum policy. So other forums may do it differently, and is often a decision left to the moderators to determine. Dont put too much weight on the term hijack, its used because when it happens, it often redirects a topic into/onto a new topic, possibly unrelated to the original topic.
IMO, you asked about exterior teak, submerged for 6mo +/- per year. This is a Teak, Interior Maintenance topic, so although both are teak questions, it really isnt that similar, and likely to need different amounts of maintaining. So it should be separate.
It happens, some days often, other days not at all. No apologies are necessary, simply try to avoid it. Same as we ask of avoiding posting to topics that have been inactive for more then 90days.
I'll work on getting this moved to a topic about your swim platform and hope that you get some helpful replies.
Thanks