It's been suggested by two people that it isn't useful for me to contribute English sentences with the same meaning.

[#8592554] I think that I can trust you. (CK) *audio*
[#8592555] I think I can trust you. (CK) *audio*

One of these people even accused me of doing this to "inflate my sentence count."

I wonder if you, too, think this isn't useful and that I should stop doing this.

I think the best thing to do is to try to steer a middle course. Do neither of the extremes: neither completely forego adding them, nor add them in every possible case.

[#8592554] I think that I can trust you. (CK) *audio*
[#8592555] I think I can trust you. (CK) *audio*

This is a very common thing to say. The word "that" may be omitted by some people while others leave it in. I think it's worth having both, but should we systematically add a variant to every possible sentence of this type? Can we have a clear conscience about leaving it to chance whether someone else will add a possible variant of a sentence we have just written? I think each of us has tried to add a sentence that already existed, or found out that there were variants out there. It comes with a little extra work, but I don't think it matters so much. I think it's OK. We can let it happen. :)

If I was given a choice whether I wanted you to add "I think that I can trust you" to "I think I can trust you" or come up with something new like these ...

[#8594680] Mary usually wears earrings.
[#8594682] Try not to be so pessimistic.

... I would clearly choose the latter. They are simple, but they are fresh and useful. You are one of the people who can really make a difference. :)